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Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
[mirror_ubuntu-hirsute-kernel.git] / drivers / usb / input / 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 <linux/sched.h>
80 #include <asm/uaccess.h>
81 #include <asm/unaligned.h>
82
83 /*
84 * Version Information
85 */
86 #define DRIVER_VERSION "v1.5 (May-15-2004)"
87 #define DRIVER_AUTHOR "Bryan W. Headley/Chris Atenasio"
88 #define DRIVER_DESC "Aiptek HyperPen USB Tablet Driver (Linux 2.6.x)"
89
90 /*
91 * Aiptek status packet:
92 *
93 * (returned as Report 1 - relative coordinates from mouse and stylus)
94 *
95 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
96 * byte0 0 0 0 0 0 0 0 1
97 * byte1 0 0 0 0 0 BS2 BS Tip
98 * byte2 X7 X6 X5 X4 X3 X2 X1 X0
99 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
100 *
101 * (returned as Report 2 - absolute coordinates from the stylus)
102 *
103 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
104 * byte0 0 0 0 0 0 0 1 0
105 * byte1 X7 X6 X5 X4 X3 X2 X1 X0
106 * byte2 X15 X14 X13 X12 X11 X10 X9 X8
107 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
108 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
109 * byte5 * * * BS2 BS1 Tip IR DV
110 * byte6 P7 P6 P5 P4 P3 P2 P1 P0
111 * byte7 P15 P14 P13 P12 P11 P10 P9 P8
112 *
113 * (returned as Report 3 - absolute coordinates from the mouse)
114 *
115 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
116 * byte0 0 0 0 0 0 0 1 0
117 * byte1 X7 X6 X5 X4 X3 X2 X1 X0
118 * byte2 X15 X14 X13 X12 X11 X10 X9 X8
119 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
120 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
121 * byte5 * * * BS2 BS1 Tip IR DV
122 * byte6 P7 P6 P5 P4 P3 P2 P1 P0
123 * byte7 P15 P14 P13 P12 P11 P10 P9 P8
124 *
125 * (returned as Report 4 - macrokeys from the stylus)
126 *
127 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
128 * byte0 0 0 0 0 0 1 0 0
129 * byte1 0 0 0 BS2 BS Tip IR DV
130 * byte2 0 0 0 0 0 0 1 0
131 * byte3 0 0 0 K4 K3 K2 K1 K0
132 * byte4 P7 P6 P5 P4 P3 P2 P1 P0
133 * byte5 P15 P14 P13 P12 P11 P10 P9 P8
134 *
135 * (returned as Report 5 - macrokeys from the mouse)
136 *
137 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
138 * byte0 0 0 0 0 0 1 0 0
139 * byte1 0 0 0 BS2 BS Tip IR DV
140 * byte2 0 0 0 0 0 0 1 0
141 * byte3 0 0 0 K4 K3 K2 K1 K0
142 * byte4 P7 P6 P5 P4 P3 P2 P1 P0
143 * byte5 P15 P14 P13 P12 P11 P10 P9 P8
144 *
145 * IR: In Range = Proximity on
146 * DV = Data Valid
147 * BS = Barrel Switch (as in, macro keys)
148 * BS2 also referred to as Tablet Pick
149 *
150 * Command Summary:
151 *
152 * Use report_type CONTROL (3)
153 * Use report_id 2
154 *
155 * Command/Data Description Return Bytes Return Value
156 * 0x10/0x00 SwitchToMouse 0
157 * 0x10/0x01 SwitchToTablet 0
158 * 0x18/0x04 SetResolution 0
159 * 0x12/0xFF AutoGainOn 0
160 * 0x17/0x00 FilterOn 0
161 * 0x01/0x00 GetXExtension 2 MaxX
162 * 0x01/0x01 GetYExtension 2 MaxY
163 * 0x02/0x00 GetModelCode 2 ModelCode = LOBYTE
164 * 0x03/0x00 GetODMCode 2 ODMCode
165 * 0x08/0x00 GetPressureLevels 2 =512
166 * 0x04/0x00 GetFirmwareVersion 2 Firmware Version
167 * 0x11/0x02 EnableMacroKeys 0
168 *
169 * To initialize the tablet:
170 *
171 * (1) Send Resolution500LPI (Command)
172 * (2) Query for Model code (Option Report)
173 * (3) Query for ODM code (Option Report)
174 * (4) Query for firmware (Option Report)
175 * (5) Query for GetXExtension (Option Report)
176 * (6) Query for GetYExtension (Option Report)
177 * (7) Query for GetPressureLevels (Option Report)
178 * (8) SwitchToTablet for Absolute coordinates, or
179 * SwitchToMouse for Relative coordinates (Command)
180 * (9) EnableMacroKeys (Command)
181 * (10) FilterOn (Command)
182 * (11) AutoGainOn (Command)
183 *
184 * (Step 9 can be omitted, but you'll then have no function keys.)
185 */
186
187 #define USB_VENDOR_ID_AIPTEK 0x08ca
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 TOOL_BUTTON_FIRED_BIT is
223 * not set, we'll send one instance of AIPTEK_TOOL_BUTTON_xxx.
224 *
225 * Whenever the user resets the value, TOOL_BUTTON_FIRED_BIT will
226 * get reset.
227 */
228 #define TOOL_BUTTON(x) ((x) & 0x14f)
229 #define TOOL_BUTTON_FIRED(x) ((x) & 0x200)
230 #define TOOL_BUTTON_FIRED_BIT 0x200
231 /* toolMode codes
232 */
233 #define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN
234 #define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN
235 #define AIPTEK_TOOL_BUTTON_PENCIL_MODE BTN_TOOL_PENCIL
236 #define AIPTEK_TOOL_BUTTON_BRUSH_MODE BTN_TOOL_BRUSH
237 #define AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE BTN_TOOL_AIRBRUSH
238 #define AIPTEK_TOOL_BUTTON_ERASER_MODE BTN_TOOL_RUBBER
239 #define AIPTEK_TOOL_BUTTON_MOUSE_MODE BTN_TOOL_MOUSE
240 #define AIPTEK_TOOL_BUTTON_LENS_MODE BTN_TOOL_LENS
241
242 /* Diagnostic message codes
243 */
244 #define AIPTEK_DIAGNOSTIC_NA 0
245 #define AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE 1
246 #define AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE 2
247 #define AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED 3
248
249 /* Time to wait (in ms) to help mask hand jittering
250 * when pressing the stylus buttons.
251 */
252 #define AIPTEK_JITTER_DELAY_DEFAULT 50
253
254 /* Time to wait (in ms) in-between sending the tablet
255 * a command and beginning the process of reading the return
256 * sequence from the tablet.
257 */
258 #define AIPTEK_PROGRAMMABLE_DELAY_25 25
259 #define AIPTEK_PROGRAMMABLE_DELAY_50 50
260 #define AIPTEK_PROGRAMMABLE_DELAY_100 100
261 #define AIPTEK_PROGRAMMABLE_DELAY_200 200
262 #define AIPTEK_PROGRAMMABLE_DELAY_300 300
263 #define AIPTEK_PROGRAMMABLE_DELAY_400 400
264 #define AIPTEK_PROGRAMMABLE_DELAY_DEFAULT AIPTEK_PROGRAMMABLE_DELAY_400
265
266 /* Mouse button programming
267 */
268 #define AIPTEK_MOUSE_LEFT_BUTTON 0x01
269 #define AIPTEK_MOUSE_RIGHT_BUTTON 0x02
270 #define AIPTEK_MOUSE_MIDDLE_BUTTON 0x04
271
272 /* Stylus button programming
273 */
274 #define AIPTEK_STYLUS_LOWER_BUTTON 0x08
275 #define AIPTEK_STYLUS_UPPER_BUTTON 0x10
276
277 /* Length of incoming packet from the tablet
278 */
279 #define AIPTEK_PACKET_LENGTH 8
280
281 /* We report in EV_MISC both the proximity and
282 * whether the report came from the stylus, tablet mouse
283 * or "unknown" -- Unknown when the tablet is in relative
284 * mode, because we only get report 1's.
285 */
286 #define AIPTEK_REPORT_TOOL_UNKNOWN 0x10
287 #define AIPTEK_REPORT_TOOL_STYLUS 0x20
288 #define AIPTEK_REPORT_TOOL_MOUSE 0x40
289
290 static int programmableDelay = AIPTEK_PROGRAMMABLE_DELAY_DEFAULT;
291 static int jitterDelay = AIPTEK_JITTER_DELAY_DEFAULT;
292
293 struct aiptek_features {
294 int odmCode; /* Tablet manufacturer code */
295 int modelCode; /* Tablet model code (not unique) */
296 int firmwareCode; /* prom/eeprom version */
297 char usbPath[64 + 1]; /* device's physical usb path */
298 char inputPath[64 + 1]; /* input device path */
299 };
300
301 struct aiptek_settings {
302 int pointerMode; /* stylus-, mouse-only or either */
303 int coordinateMode; /* absolute/relative coords */
304 int toolMode; /* pen, pencil, brush, etc. tool */
305 int xTilt; /* synthetic xTilt amount */
306 int yTilt; /* synthetic yTilt amount */
307 int wheel; /* synthetic wheel amount */
308 int stylusButtonUpper; /* stylus upper btn delivers... */
309 int stylusButtonLower; /* stylus lower btn delivers... */
310 int mouseButtonLeft; /* mouse left btn delivers... */
311 int mouseButtonMiddle; /* mouse middle btn delivers... */
312 int mouseButtonRight; /* mouse right btn delivers... */
313 int programmableDelay; /* delay for tablet programming */
314 int jitterDelay; /* delay for hand jittering */
315 };
316
317 struct aiptek {
318 struct input_dev *inputdev; /* input device struct */
319 struct usb_device *usbdev; /* usb device struct */
320 struct urb *urb; /* urb for incoming reports */
321 dma_addr_t data_dma; /* our dma stuffage */
322 struct aiptek_features features; /* tablet's array of features */
323 struct aiptek_settings curSetting; /* tablet's current programmable */
324 struct aiptek_settings newSetting; /* ... and new param settings */
325 unsigned int ifnum; /* interface number for IO */
326 int diagnostic; /* tablet diagnostic codes */
327 unsigned long eventCount; /* event count */
328 int inDelay; /* jitter: in jitter delay? */
329 unsigned long endDelay; /* jitter: time when delay ends */
330 int previousJitterable; /* jitterable prev value */
331 unsigned char *data; /* incoming packet data */
332 };
333
334 /*
335 * Permit easy lookup of keyboard events to send, versus
336 * the bitmap which comes from the tablet. This hides the
337 * issue that the F_keys are not sequentially numbered.
338 */
339 static const int macroKeyEvents[] = {
340 KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5,
341 KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11,
342 KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17,
343 KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23,
344 KEY_F24, KEY_STOP, KEY_AGAIN, KEY_PROPS, KEY_UNDO,
345 KEY_FRONT, KEY_COPY, KEY_OPEN, KEY_PASTE, 0
346 };
347
348 /***********************************************************************
349 * Relative reports deliver values in 2's complement format to
350 * deal with negative offsets.
351 */
352 static int aiptek_convert_from_2s_complement(unsigned char c)
353 {
354 int ret;
355 unsigned char b = c;
356 int negate = 0;
357
358 if ((b & 0x80) != 0) {
359 b = ~b;
360 b--;
361 negate = 1;
362 }
363 ret = b;
364 ret = (negate == 1) ? -ret : ret;
365 return ret;
366 }
367
368 /***********************************************************************
369 * aiptek_irq can receive one of six potential reports.
370 * The documentation for each is in the body of the function.
371 *
372 * The tablet reports on several attributes per invocation of
373 * aiptek_irq. Because the Linux Input Event system allows the
374 * transmission of ONE attribute per input_report_xxx() call,
375 * collation has to be done on the other end to reconstitute
376 * a complete tablet report. Further, the number of Input Event reports
377 * submitted varies, depending on what USB report type, and circumstance.
378 * To deal with this, EV_MSC is used to indicate an 'end-of-report'
379 * message. This has been an undocumented convention understood by the kernel
380 * tablet driver and clients such as gpm and XFree86's tablet drivers.
381 *
382 * Of the information received from the tablet, the one piece I
383 * cannot transmit is the proximity bit (without resorting to an EV_MSC
384 * convention above.) I therefore have taken over REL_MISC and ABS_MISC
385 * (for relative and absolute reports, respectively) for communicating
386 * Proximity. Why two events? I thought it interesting to know if the
387 * Proximity event occurred while the tablet was in absolute or relative
388 * mode.
389 *
390 * Other tablets use the notion of a certain minimum stylus pressure
391 * to infer proximity. While that could have been done, that is yet
392 * another 'by convention' behavior, the documentation for which
393 * would be spread between two (or more) pieces of software.
394 *
395 * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and
396 * replaced with the input_sync() method (which emits EV_SYN.)
397 */
398
399 static void aiptek_irq(struct urb *urb)
400 {
401 struct aiptek *aiptek = urb->context;
402 unsigned char *data = aiptek->data;
403 struct input_dev *inputdev = aiptek->inputdev;
404 int jitterable = 0;
405 int retval, macro, x, y, z, left, right, middle, p, dv, tip, bs, pck;
406
407 switch (urb->status) {
408 case 0:
409 /* Success */
410 break;
411
412 case -ECONNRESET:
413 case -ENOENT:
414 case -ESHUTDOWN:
415 /* This urb is terminated, clean up */
416 dbg("%s - urb shutting down with status: %d",
417 __FUNCTION__, urb->status);
418 return;
419
420 default:
421 dbg("%s - nonzero urb status received: %d",
422 __FUNCTION__, urb->status);
423 goto exit;
424 }
425
426 /* See if we are in a delay loop -- throw out report if true.
427 */
428 if (aiptek->inDelay == 1 && time_after(aiptek->endDelay, jiffies)) {
429 goto exit;
430 }
431
432 aiptek->inDelay = 0;
433 aiptek->eventCount++;
434
435 /* Report 1 delivers relative coordinates with either a stylus
436 * or the mouse. You do not know, however, which input
437 * tool generated the event.
438 */
439 if (data[0] == 1) {
440 if (aiptek->curSetting.coordinateMode ==
441 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
442 aiptek->diagnostic =
443 AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE;
444 } else {
445 x = aiptek_convert_from_2s_complement(data[2]);
446 y = aiptek_convert_from_2s_complement(data[3]);
447
448 /* jitterable keeps track of whether any button has been pressed.
449 * We're also using it to remap the physical mouse button mask
450 * to pseudo-settings. (We don't specifically care about it's
451 * value after moving/transposing mouse button bitmasks, except
452 * that a non-zero value indicates that one or more
453 * mouse button was pressed.)
454 */
455 jitterable = data[5] & 0x07;
456
457 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
458 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
459 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
460
461 input_report_key(inputdev, BTN_LEFT, left);
462 input_report_key(inputdev, BTN_MIDDLE, middle);
463 input_report_key(inputdev, BTN_RIGHT, right);
464 input_report_rel(inputdev, REL_X, x);
465 input_report_rel(inputdev, REL_Y, y);
466 input_report_rel(inputdev, REL_MISC, 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
467
468 /* Wheel support is in the form of a single-event
469 * firing.
470 */
471 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
472 input_report_rel(inputdev, REL_WHEEL,
473 aiptek->curSetting.wheel);
474 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
475 }
476 input_sync(inputdev);
477 }
478 }
479 /* Report 2 is delivered only by the stylus, and delivers
480 * absolute coordinates.
481 */
482 else if (data[0] == 2) {
483 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
484 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
485 } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE
486 (aiptek->curSetting.pointerMode)) {
487 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
488 } else {
489 x = le16_to_cpu(get_unaligned((__le16 *) (data + 1)));
490 y = le16_to_cpu(get_unaligned((__le16 *) (data + 3)));
491 z = le16_to_cpu(get_unaligned((__le16 *) (data + 6)));
492
493 p = (data[5] & 0x01) != 0 ? 1 : 0;
494 dv = (data[5] & 0x02) != 0 ? 1 : 0;
495 tip = (data[5] & 0x04) != 0 ? 1 : 0;
496
497 /* Use jitterable to re-arrange button masks
498 */
499 jitterable = data[5] & 0x18;
500
501 bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
502 pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
503
504 /* dv indicates 'data valid' (e.g., the tablet is in sync
505 * and has delivered a "correct" report) We will ignore
506 * all 'bad' reports...
507 */
508 if (dv != 0) {
509 /* If we've not already sent a tool_button_?? code, do
510 * so now. Then set FIRED_BIT so it won't be resent unless
511 * the user forces FIRED_BIT off.
512 */
513 if (TOOL_BUTTON_FIRED
514 (aiptek->curSetting.toolMode) == 0) {
515 input_report_key(inputdev,
516 TOOL_BUTTON(aiptek->curSetting.toolMode),
517 1);
518 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
519 }
520
521 if (p != 0) {
522 input_report_abs(inputdev, ABS_X, x);
523 input_report_abs(inputdev, ABS_Y, y);
524 input_report_abs(inputdev, ABS_PRESSURE, z);
525
526 input_report_key(inputdev, BTN_TOUCH, tip);
527 input_report_key(inputdev, BTN_STYLUS, bs);
528 input_report_key(inputdev, BTN_STYLUS2, pck);
529
530 if (aiptek->curSetting.xTilt !=
531 AIPTEK_TILT_DISABLE) {
532 input_report_abs(inputdev,
533 ABS_TILT_X,
534 aiptek->curSetting.xTilt);
535 }
536 if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) {
537 input_report_abs(inputdev,
538 ABS_TILT_Y,
539 aiptek->curSetting.yTilt);
540 }
541
542 /* Wheel support is in the form of a single-event
543 * firing.
544 */
545 if (aiptek->curSetting.wheel !=
546 AIPTEK_WHEEL_DISABLE) {
547 input_report_abs(inputdev,
548 ABS_WHEEL,
549 aiptek->curSetting.wheel);
550 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
551 }
552 }
553 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS);
554 input_sync(inputdev);
555 }
556 }
557 }
558 /* Report 3's come from the mouse in absolute mode.
559 */
560 else if (data[0] == 3) {
561 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
562 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
563 } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE
564 (aiptek->curSetting.pointerMode)) {
565 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
566 } else {
567 x = le16_to_cpu(get_unaligned((__le16 *) (data + 1)));
568 y = le16_to_cpu(get_unaligned((__le16 *) (data + 3)));
569
570 jitterable = data[5] & 0x1c;
571
572 p = (data[5] & 0x01) != 0 ? 1 : 0;
573 dv = (data[5] & 0x02) != 0 ? 1 : 0;
574 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
575 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
576 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
577
578 if (dv != 0) {
579 /* If we've not already sent a tool_button_?? code, do
580 * so now. Then set FIRED_BIT so it won't be resent unless
581 * the user forces FIRED_BIT off.
582 */
583 if (TOOL_BUTTON_FIRED
584 (aiptek->curSetting.toolMode) == 0) {
585 input_report_key(inputdev,
586 TOOL_BUTTON(aiptek->curSetting.toolMode),
587 1);
588 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
589 }
590
591 if (p != 0) {
592 input_report_abs(inputdev, ABS_X, x);
593 input_report_abs(inputdev, ABS_Y, y);
594
595 input_report_key(inputdev, BTN_LEFT, left);
596 input_report_key(inputdev, BTN_MIDDLE, middle);
597 input_report_key(inputdev, BTN_RIGHT, right);
598
599 /* Wheel support is in the form of a single-event
600 * firing.
601 */
602 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
603 input_report_abs(inputdev,
604 ABS_WHEEL,
605 aiptek->curSetting.wheel);
606 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
607 }
608 }
609 input_report_rel(inputdev, REL_MISC, p | AIPTEK_REPORT_TOOL_MOUSE);
610 input_sync(inputdev);
611 }
612 }
613 }
614 /* Report 4s come from the macro keys when pressed by stylus
615 */
616 else if (data[0] == 4) {
617 jitterable = data[1] & 0x18;
618
619 p = (data[1] & 0x01) != 0 ? 1 : 0;
620 dv = (data[1] & 0x02) != 0 ? 1 : 0;
621 tip = (data[1] & 0x04) != 0 ? 1 : 0;
622 bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
623 pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
624
625 macro = data[3];
626 z = le16_to_cpu(get_unaligned((__le16 *) (data + 4)));
627
628 if (dv != 0) {
629 /* If we've not already sent a tool_button_?? code, do
630 * so now. Then set FIRED_BIT so it won't be resent unless
631 * the user forces FIRED_BIT off.
632 */
633 if (TOOL_BUTTON_FIRED(aiptek->curSetting.toolMode) == 0) {
634 input_report_key(inputdev,
635 TOOL_BUTTON(aiptek->curSetting.toolMode),
636 1);
637 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
638 }
639
640 if (p != 0) {
641 input_report_key(inputdev, BTN_TOUCH, tip);
642 input_report_key(inputdev, BTN_STYLUS, bs);
643 input_report_key(inputdev, BTN_STYLUS2, pck);
644 input_report_abs(inputdev, ABS_PRESSURE, z);
645 }
646
647 /* For safety, we're sending key 'break' codes for the
648 * neighboring macro keys.
649 */
650 if (macro > 0) {
651 input_report_key(inputdev,
652 macroKeyEvents[macro - 1], 0);
653 }
654 if (macro < 25) {
655 input_report_key(inputdev,
656 macroKeyEvents[macro + 1], 0);
657 }
658 input_report_key(inputdev, macroKeyEvents[macro], p);
659 input_report_abs(inputdev, ABS_MISC,
660 p | AIPTEK_REPORT_TOOL_STYLUS);
661 input_sync(inputdev);
662 }
663 }
664 /* Report 5s come from the macro keys when pressed by mouse
665 */
666 else if (data[0] == 5) {
667 jitterable = data[1] & 0x1c;
668
669 p = (data[1] & 0x01) != 0 ? 1 : 0;
670 dv = (data[1] & 0x02) != 0 ? 1 : 0;
671 left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
672 right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
673 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
674 macro = data[3];
675
676 if (dv != 0) {
677 /* If we've not already sent a tool_button_?? code, do
678 * so now. Then set FIRED_BIT so it won't be resent unless
679 * the user forces FIRED_BIT off.
680 */
681 if (TOOL_BUTTON_FIRED(aiptek->curSetting.toolMode) == 0) {
682 input_report_key(inputdev,
683 TOOL_BUTTON(aiptek->curSetting.toolMode),
684 1);
685 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
686 }
687
688 if (p != 0) {
689 input_report_key(inputdev, BTN_LEFT, left);
690 input_report_key(inputdev, BTN_MIDDLE, middle);
691 input_report_key(inputdev, BTN_RIGHT, right);
692 }
693
694 /* For safety, we're sending key 'break' codes for the
695 * neighboring macro keys.
696 */
697 if (macro > 0) {
698 input_report_key(inputdev,
699 macroKeyEvents[macro - 1], 0);
700 }
701 if (macro < 25) {
702 input_report_key(inputdev,
703 macroKeyEvents[macro + 1], 0);
704 }
705
706 input_report_key(inputdev, macroKeyEvents[macro], 1);
707 input_report_rel(inputdev, ABS_MISC,
708 p | AIPTEK_REPORT_TOOL_MOUSE);
709 input_sync(inputdev);
710 }
711 }
712 /* We have no idea which tool can generate a report 6. Theoretically,
713 * neither need to, having been given reports 4 & 5 for such use.
714 * However, report 6 is the 'official-looking' report for macroKeys;
715 * reports 4 & 5 supposively are used to support unnamed, unknown
716 * hat switches (which just so happen to be the macroKeys.)
717 */
718 else if (data[0] == 6) {
719 macro = le16_to_cpu(get_unaligned((__le16 *) (data + 1)));
720 if (macro > 0) {
721 input_report_key(inputdev, macroKeyEvents[macro - 1],
722 0);
723 }
724 if (macro < 25) {
725 input_report_key(inputdev, macroKeyEvents[macro + 1],
726 0);
727 }
728
729 /* If we've not already sent a tool_button_?? code, do
730 * so now. Then set FIRED_BIT so it won't be resent unless
731 * the user forces FIRED_BIT off.
732 */
733 if (TOOL_BUTTON_FIRED(aiptek->curSetting.toolMode) == 0) {
734 input_report_key(inputdev,
735 TOOL_BUTTON(aiptek->curSetting.
736 toolMode), 1);
737 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
738 }
739
740 input_report_key(inputdev, macroKeyEvents[macro], 1);
741 input_report_abs(inputdev, ABS_MISC,
742 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
743 input_sync(inputdev);
744 } else {
745 dbg("Unknown report %d", data[0]);
746 }
747
748 /* Jitter may occur when the user presses a button on the stlyus
749 * or the mouse. What we do to prevent that is wait 'x' milliseconds
750 * following a 'jitterable' event, which should give the hand some time
751 * stabilize itself.
752 *
753 * We just introduced aiptek->previousJitterable to carry forth the
754 * notion that jitter occurs when the button state changes from on to off:
755 * a person drawing, holding a button down is not subject to jittering.
756 * With that in mind, changing from upper button depressed to lower button
757 * WILL transition through a jitter delay.
758 */
759
760 if (aiptek->previousJitterable != jitterable &&
761 aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) {
762 aiptek->endDelay = jiffies +
763 ((aiptek->curSetting.jitterDelay * HZ) / 1000);
764 aiptek->inDelay = 1;
765 }
766 aiptek->previousJitterable = jitterable;
767
768 exit:
769 retval = usb_submit_urb(urb, GFP_ATOMIC);
770 if (retval != 0) {
771 err("%s - usb_submit_urb failed with result %d",
772 __FUNCTION__, retval);
773 }
774 }
775
776 /***********************************************************************
777 * These are the USB id's known so far. We do not identify them to
778 * specific Aiptek model numbers, because there has been overlaps,
779 * use, and reuse of id's in existing models. Certain models have
780 * been known to use more than one ID, indicative perhaps of
781 * manufacturing revisions. In any event, we consider these
782 * IDs to not be model-specific nor unique.
783 */
784 static const struct usb_device_id aiptek_ids[] = {
785 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)},
786 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)},
787 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)},
788 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)},
789 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)},
790 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)},
791 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)},
792 {}
793 };
794
795 MODULE_DEVICE_TABLE(usb, aiptek_ids);
796
797 /***********************************************************************
798 * Open an instance of the tablet driver.
799 */
800 static int aiptek_open(struct input_dev *inputdev)
801 {
802 struct aiptek *aiptek = inputdev->private;
803
804 aiptek->urb->dev = aiptek->usbdev;
805 if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0)
806 return -EIO;
807
808 return 0;
809 }
810
811 /***********************************************************************
812 * Close an instance of the tablet driver.
813 */
814 static void aiptek_close(struct input_dev *inputdev)
815 {
816 struct aiptek *aiptek = inputdev->private;
817
818 usb_kill_urb(aiptek->urb);
819 }
820
821 /***********************************************************************
822 * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x,
823 * where they were known as usb_set_report and usb_get_report.
824 */
825 static int
826 aiptek_set_report(struct aiptek *aiptek,
827 unsigned char report_type,
828 unsigned char report_id, void *buffer, int size)
829 {
830 return usb_control_msg(aiptek->usbdev,
831 usb_sndctrlpipe(aiptek->usbdev, 0),
832 USB_REQ_SET_REPORT,
833 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
834 USB_DIR_OUT, (report_type << 8) + report_id,
835 aiptek->ifnum, buffer, size, 5000);
836 }
837
838 static int
839 aiptek_get_report(struct aiptek *aiptek,
840 unsigned char report_type,
841 unsigned char report_id, void *buffer, int size)
842 {
843 return usb_control_msg(aiptek->usbdev,
844 usb_rcvctrlpipe(aiptek->usbdev, 0),
845 USB_REQ_GET_REPORT,
846 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
847 USB_DIR_IN, (report_type << 8) + report_id,
848 aiptek->ifnum, buffer, size, 5000);
849 }
850
851 /***********************************************************************
852 * Send a command to the tablet.
853 */
854 static int
855 aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data)
856 {
857 const int sizeof_buf = 3 * sizeof(u8);
858 int ret;
859 u8 *buf;
860
861 buf = kmalloc(sizeof_buf, GFP_KERNEL);
862 if (!buf)
863 return -ENOMEM;
864
865 buf[0] = 2;
866 buf[1] = command;
867 buf[2] = data;
868
869 if ((ret =
870 aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
871 dbg("aiptek_program: failed, tried to send: 0x%02x 0x%02x",
872 command, data);
873 }
874 kfree(buf);
875 return ret < 0 ? ret : 0;
876 }
877
878 /***********************************************************************
879 * Retrieve information from the tablet. Querying info is defined as first
880 * sending the {command,data} sequence as a command, followed by a wait
881 * (aka, "programmaticDelay") and then a "read" request.
882 */
883 static int
884 aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data)
885 {
886 const int sizeof_buf = 3 * sizeof(u8);
887 int ret;
888 u8 *buf;
889
890 buf = kmalloc(sizeof_buf, GFP_KERNEL);
891 if (!buf)
892 return -ENOMEM;
893
894 buf[0] = 2;
895 buf[1] = command;
896 buf[2] = data;
897
898 if (aiptek_command(aiptek, command, data) != 0) {
899 kfree(buf);
900 return -EIO;
901 }
902 msleep(aiptek->curSetting.programmableDelay);
903
904 if ((ret =
905 aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
906 dbg("aiptek_query failed: returned 0x%02x 0x%02x 0x%02x",
907 buf[0], buf[1], buf[2]);
908 ret = -EIO;
909 } else {
910 ret = le16_to_cpu(get_unaligned((__le16 *) (buf + 1)));
911 }
912 kfree(buf);
913 return ret;
914 }
915
916 /***********************************************************************
917 * Program the tablet into either absolute or relative mode.
918 * We also get information about the tablet's size.
919 */
920 static int aiptek_program_tablet(struct aiptek *aiptek)
921 {
922 int ret;
923 /* Execute Resolution500LPI */
924 if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0)
925 return ret;
926
927 /* Query getModelCode */
928 if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0)
929 return ret;
930 aiptek->features.modelCode = ret & 0xff;
931
932 /* Query getODMCode */
933 if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0)
934 return ret;
935 aiptek->features.odmCode = ret;
936
937 /* Query getFirmwareCode */
938 if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0)
939 return ret;
940 aiptek->features.firmwareCode = ret;
941
942 /* Query getXextension */
943 if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0)
944 return ret;
945 aiptek->inputdev->absmin[ABS_X] = 0;
946 aiptek->inputdev->absmax[ABS_X] = ret - 1;
947
948 /* Query getYextension */
949 if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0)
950 return ret;
951 aiptek->inputdev->absmin[ABS_Y] = 0;
952 aiptek->inputdev->absmax[ABS_Y] = ret - 1;
953
954 /* Query getPressureLevels */
955 if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0)
956 return ret;
957 aiptek->inputdev->absmin[ABS_PRESSURE] = 0;
958 aiptek->inputdev->absmax[ABS_PRESSURE] = ret - 1;
959
960 /* Depending on whether we are in absolute or relative mode, we will
961 * do a switchToTablet(absolute) or switchToMouse(relative) command.
962 */
963 if (aiptek->curSetting.coordinateMode ==
964 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
965 /* Execute switchToTablet */
966 if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) {
967 return ret;
968 }
969 } else {
970 /* Execute switchToMouse */
971 if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) {
972 return ret;
973 }
974 }
975
976 /* Enable the macro keys */
977 if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0)
978 return ret;
979 #if 0
980 /* Execute FilterOn */
981 if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0)
982 return ret;
983 #endif
984
985 /* Execute AutoGainOn */
986 if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0)
987 return ret;
988
989 /* Reset the eventCount, so we track events from last (re)programming
990 */
991 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA;
992 aiptek->eventCount = 0;
993
994 return 0;
995 }
996
997 /***********************************************************************
998 * Sysfs functions. Sysfs prefers that individually-tunable parameters
999 * exist in their separate pseudo-files. Summary data that is immutable
1000 * may exist in a singular file so long as you don't define a writeable
1001 * interface.
1002 */
1003
1004 /***********************************************************************
1005 * support the 'size' file -- display support
1006 */
1007 static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf)
1008 {
1009 struct aiptek *aiptek = dev_get_drvdata(dev);
1010
1011 if (aiptek == NULL)
1012 return 0;
1013
1014 return snprintf(buf, PAGE_SIZE, "%dx%d\n",
1015 aiptek->inputdev->absmax[ABS_X] + 1,
1016 aiptek->inputdev->absmax[ABS_Y] + 1);
1017 }
1018
1019 /* These structs define the sysfs files, param #1 is the name of the
1020 * file, param 2 is the file permissions, param 3 & 4 are to the
1021 * output generator and input parser routines. Absence of a routine is
1022 * permitted -- it only means can't either 'cat' the file, or send data
1023 * to it.
1024 */
1025 static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL);
1026
1027 /***********************************************************************
1028 * support routines for the 'product_id' file
1029 */
1030 static ssize_t show_tabletProductId(struct device *dev, struct device_attribute *attr, char *buf)
1031 {
1032 struct aiptek *aiptek = dev_get_drvdata(dev);
1033
1034 if (aiptek == NULL)
1035 return 0;
1036
1037 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
1038 aiptek->inputdev->id.product);
1039 }
1040
1041 static DEVICE_ATTR(product_id, S_IRUGO, show_tabletProductId, NULL);
1042
1043 /***********************************************************************
1044 * support routines for the 'vendor_id' file
1045 */
1046 static ssize_t show_tabletVendorId(struct device *dev, struct device_attribute *attr, char *buf)
1047 {
1048 struct aiptek *aiptek = dev_get_drvdata(dev);
1049
1050 if (aiptek == NULL)
1051 return 0;
1052
1053 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->inputdev->id.vendor);
1054 }
1055
1056 static DEVICE_ATTR(vendor_id, S_IRUGO, show_tabletVendorId, NULL);
1057
1058 /***********************************************************************
1059 * support routines for the 'vendor' file
1060 */
1061 static ssize_t show_tabletManufacturer(struct device *dev, struct device_attribute *attr, char *buf)
1062 {
1063 struct aiptek *aiptek = dev_get_drvdata(dev);
1064 int retval;
1065
1066 if (aiptek == NULL)
1067 return 0;
1068
1069 retval = snprintf(buf, PAGE_SIZE, "%s\n", aiptek->usbdev->manufacturer);
1070 return retval;
1071 }
1072
1073 static DEVICE_ATTR(vendor, S_IRUGO, show_tabletManufacturer, NULL);
1074
1075 /***********************************************************************
1076 * support routines for the 'product' file
1077 */
1078 static ssize_t show_tabletProduct(struct device *dev, struct device_attribute *attr, char *buf)
1079 {
1080 struct aiptek *aiptek = dev_get_drvdata(dev);
1081 int retval;
1082
1083 if (aiptek == NULL)
1084 return 0;
1085
1086 retval = snprintf(buf, PAGE_SIZE, "%s\n", aiptek->usbdev->product);
1087 return retval;
1088 }
1089
1090 static DEVICE_ATTR(product, S_IRUGO, show_tabletProduct, NULL);
1091
1092 /***********************************************************************
1093 * support routines for the 'pointer_mode' file. Note that this file
1094 * both displays current setting and allows reprogramming.
1095 */
1096 static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf)
1097 {
1098 struct aiptek *aiptek = dev_get_drvdata(dev);
1099 char *s;
1100
1101 if (aiptek == NULL)
1102 return 0;
1103
1104 switch (aiptek->curSetting.pointerMode) {
1105 case AIPTEK_POINTER_ONLY_STYLUS_MODE:
1106 s = "stylus";
1107 break;
1108
1109 case AIPTEK_POINTER_ONLY_MOUSE_MODE:
1110 s = "mouse";
1111 break;
1112
1113 case AIPTEK_POINTER_EITHER_MODE:
1114 s = "either";
1115 break;
1116
1117 default:
1118 s = "unknown";
1119 break;
1120 }
1121 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1122 }
1123
1124 static ssize_t
1125 store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1126 {
1127 struct aiptek *aiptek = dev_get_drvdata(dev);
1128 if (aiptek == NULL)
1129 return 0;
1130
1131 if (strcmp(buf, "stylus") == 0) {
1132 aiptek->newSetting.pointerMode =
1133 AIPTEK_POINTER_ONLY_STYLUS_MODE;
1134 } else if (strcmp(buf, "mouse") == 0) {
1135 aiptek->newSetting.pointerMode = AIPTEK_POINTER_ONLY_MOUSE_MODE;
1136 } else if (strcmp(buf, "either") == 0) {
1137 aiptek->newSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
1138 }
1139 return count;
1140 }
1141
1142 static DEVICE_ATTR(pointer_mode,
1143 S_IRUGO | S_IWUGO,
1144 show_tabletPointerMode, store_tabletPointerMode);
1145
1146 /***********************************************************************
1147 * support routines for the 'coordinate_mode' file. Note that this file
1148 * both displays current setting and allows reprogramming.
1149 */
1150 static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf)
1151 {
1152 struct aiptek *aiptek = dev_get_drvdata(dev);
1153 char *s;
1154
1155 if (aiptek == NULL)
1156 return 0;
1157
1158 switch (aiptek->curSetting.coordinateMode) {
1159 case AIPTEK_COORDINATE_ABSOLUTE_MODE:
1160 s = "absolute";
1161 break;
1162
1163 case AIPTEK_COORDINATE_RELATIVE_MODE:
1164 s = "relative";
1165 break;
1166
1167 default:
1168 s = "unknown";
1169 break;
1170 }
1171 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1172 }
1173
1174 static ssize_t
1175 store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1176 {
1177 struct aiptek *aiptek = dev_get_drvdata(dev);
1178 if (aiptek == NULL)
1179 return 0;
1180
1181 if (strcmp(buf, "absolute") == 0) {
1182 aiptek->newSetting.pointerMode =
1183 AIPTEK_COORDINATE_ABSOLUTE_MODE;
1184 } else if (strcmp(buf, "relative") == 0) {
1185 aiptek->newSetting.pointerMode =
1186 AIPTEK_COORDINATE_RELATIVE_MODE;
1187 }
1188 return count;
1189 }
1190
1191 static DEVICE_ATTR(coordinate_mode,
1192 S_IRUGO | S_IWUGO,
1193 show_tabletCoordinateMode, store_tabletCoordinateMode);
1194
1195 /***********************************************************************
1196 * support routines for the 'tool_mode' file. Note that this file
1197 * both displays current setting and allows reprogramming.
1198 */
1199 static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf)
1200 {
1201 struct aiptek *aiptek = dev_get_drvdata(dev);
1202 char *s;
1203
1204 if (aiptek == NULL)
1205 return 0;
1206
1207 switch (TOOL_BUTTON(aiptek->curSetting.toolMode)) {
1208 case AIPTEK_TOOL_BUTTON_MOUSE_MODE:
1209 s = "mouse";
1210 break;
1211
1212 case AIPTEK_TOOL_BUTTON_ERASER_MODE:
1213 s = "eraser";
1214 break;
1215
1216 case AIPTEK_TOOL_BUTTON_PENCIL_MODE:
1217 s = "pencil";
1218 break;
1219
1220 case AIPTEK_TOOL_BUTTON_PEN_MODE:
1221 s = "pen";
1222 break;
1223
1224 case AIPTEK_TOOL_BUTTON_BRUSH_MODE:
1225 s = "brush";
1226 break;
1227
1228 case AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE:
1229 s = "airbrush";
1230 break;
1231
1232 case AIPTEK_TOOL_BUTTON_LENS_MODE:
1233 s = "lens";
1234 break;
1235
1236 default:
1237 s = "unknown";
1238 break;
1239 }
1240 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1241 }
1242
1243 static ssize_t
1244 store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1245 {
1246 struct aiptek *aiptek = dev_get_drvdata(dev);
1247 if (aiptek == NULL)
1248 return 0;
1249
1250 if (strcmp(buf, "mouse") == 0) {
1251 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_MOUSE_MODE;
1252 } else if (strcmp(buf, "eraser") == 0) {
1253 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_ERASER_MODE;
1254 } else if (strcmp(buf, "pencil") == 0) {
1255 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_PENCIL_MODE;
1256 } else if (strcmp(buf, "pen") == 0) {
1257 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
1258 } else if (strcmp(buf, "brush") == 0) {
1259 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_BRUSH_MODE;
1260 } else if (strcmp(buf, "airbrush") == 0) {
1261 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE;
1262 } else if (strcmp(buf, "lens") == 0) {
1263 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_LENS_MODE;
1264 }
1265
1266 return count;
1267 }
1268
1269 static DEVICE_ATTR(tool_mode,
1270 S_IRUGO | S_IWUGO,
1271 show_tabletToolMode, store_tabletToolMode);
1272
1273 /***********************************************************************
1274 * support routines for the 'xtilt' file. Note that this file
1275 * both displays current setting and allows reprogramming.
1276 */
1277 static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf)
1278 {
1279 struct aiptek *aiptek = dev_get_drvdata(dev);
1280
1281 if (aiptek == NULL)
1282 return 0;
1283
1284 if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
1285 return snprintf(buf, PAGE_SIZE, "disable\n");
1286 } else {
1287 return snprintf(buf, PAGE_SIZE, "%d\n",
1288 aiptek->curSetting.xTilt);
1289 }
1290 }
1291
1292 static ssize_t
1293 store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1294 {
1295 struct aiptek *aiptek = dev_get_drvdata(dev);
1296 int x;
1297
1298 if (aiptek == NULL)
1299 return 0;
1300
1301 if (strcmp(buf, "disable") == 0) {
1302 aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
1303 } else {
1304 x = (int)simple_strtol(buf, NULL, 10);
1305 if (x >= AIPTEK_TILT_MIN && x <= AIPTEK_TILT_MAX) {
1306 aiptek->newSetting.xTilt = x;
1307 }
1308 }
1309 return count;
1310 }
1311
1312 static DEVICE_ATTR(xtilt,
1313 S_IRUGO | S_IWUGO, show_tabletXtilt, store_tabletXtilt);
1314
1315 /***********************************************************************
1316 * support routines for the 'ytilt' file. Note that this file
1317 * both displays current setting and allows reprogramming.
1318 */
1319 static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf)
1320 {
1321 struct aiptek *aiptek = dev_get_drvdata(dev);
1322
1323 if (aiptek == NULL)
1324 return 0;
1325
1326 if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
1327 return snprintf(buf, PAGE_SIZE, "disable\n");
1328 } else {
1329 return snprintf(buf, PAGE_SIZE, "%d\n",
1330 aiptek->curSetting.yTilt);
1331 }
1332 }
1333
1334 static ssize_t
1335 store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1336 {
1337 struct aiptek *aiptek = dev_get_drvdata(dev);
1338 int y;
1339
1340 if (aiptek == NULL)
1341 return 0;
1342
1343 if (strcmp(buf, "disable") == 0) {
1344 aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
1345 } else {
1346 y = (int)simple_strtol(buf, NULL, 10);
1347 if (y >= AIPTEK_TILT_MIN && y <= AIPTEK_TILT_MAX) {
1348 aiptek->newSetting.yTilt = y;
1349 }
1350 }
1351 return count;
1352 }
1353
1354 static DEVICE_ATTR(ytilt,
1355 S_IRUGO | S_IWUGO, show_tabletYtilt, store_tabletYtilt);
1356
1357 /***********************************************************************
1358 * support routines for the 'jitter' file. Note that this file
1359 * both displays current setting and allows reprogramming.
1360 */
1361 static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf)
1362 {
1363 struct aiptek *aiptek = dev_get_drvdata(dev);
1364
1365 if (aiptek == NULL)
1366 return 0;
1367
1368 return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay);
1369 }
1370
1371 static ssize_t
1372 store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1373 {
1374 struct aiptek *aiptek = dev_get_drvdata(dev);
1375
1376 if (aiptek == NULL)
1377 return 0;
1378
1379 aiptek->newSetting.jitterDelay = (int)simple_strtol(buf, NULL, 10);
1380 return count;
1381 }
1382
1383 static DEVICE_ATTR(jitter,
1384 S_IRUGO | S_IWUGO,
1385 show_tabletJitterDelay, store_tabletJitterDelay);
1386
1387 /***********************************************************************
1388 * support routines for the 'delay' file. Note that this file
1389 * both displays current setting and allows reprogramming.
1390 */
1391 static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf)
1392 {
1393 struct aiptek *aiptek = dev_get_drvdata(dev);
1394
1395 if (aiptek == NULL)
1396 return 0;
1397
1398 return snprintf(buf, PAGE_SIZE, "%d\n",
1399 aiptek->curSetting.programmableDelay);
1400 }
1401
1402 static ssize_t
1403 store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1404 {
1405 struct aiptek *aiptek = dev_get_drvdata(dev);
1406
1407 if (aiptek == NULL)
1408 return 0;
1409
1410 aiptek->newSetting.programmableDelay = (int)simple_strtol(buf, NULL, 10);
1411 return count;
1412 }
1413
1414 static DEVICE_ATTR(delay,
1415 S_IRUGO | S_IWUGO,
1416 show_tabletProgrammableDelay, store_tabletProgrammableDelay);
1417
1418 /***********************************************************************
1419 * support routines for the 'input_path' file. Note that this file
1420 * only displays current setting.
1421 */
1422 static ssize_t show_tabletInputDevice(struct device *dev, struct device_attribute *attr, char *buf)
1423 {
1424 struct aiptek *aiptek = dev_get_drvdata(dev);
1425
1426 if (aiptek == NULL)
1427 return 0;
1428
1429 return snprintf(buf, PAGE_SIZE, "/dev/input/%s\n",
1430 aiptek->features.inputPath);
1431 }
1432
1433 static DEVICE_ATTR(input_path, S_IRUGO, show_tabletInputDevice, NULL);
1434
1435 /***********************************************************************
1436 * support routines for the 'event_count' file. Note that this file
1437 * only displays current setting.
1438 */
1439 static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf)
1440 {
1441 struct aiptek *aiptek = dev_get_drvdata(dev);
1442
1443 if (aiptek == NULL)
1444 return 0;
1445
1446 return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount);
1447 }
1448
1449 static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL);
1450
1451 /***********************************************************************
1452 * support routines for the 'diagnostic' file. Note that this file
1453 * only displays current setting.
1454 */
1455 static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf)
1456 {
1457 struct aiptek *aiptek = dev_get_drvdata(dev);
1458 char *retMsg;
1459
1460 if (aiptek == NULL)
1461 return 0;
1462
1463 switch (aiptek->diagnostic) {
1464 case AIPTEK_DIAGNOSTIC_NA:
1465 retMsg = "no errors\n";
1466 break;
1467
1468 case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE:
1469 retMsg = "Error: receiving relative reports\n";
1470 break;
1471
1472 case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE:
1473 retMsg = "Error: receiving absolute reports\n";
1474 break;
1475
1476 case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED:
1477 if (aiptek->curSetting.pointerMode ==
1478 AIPTEK_POINTER_ONLY_MOUSE_MODE) {
1479 retMsg = "Error: receiving stylus reports\n";
1480 } else {
1481 retMsg = "Error: receiving mouse reports\n";
1482 }
1483 break;
1484
1485 default:
1486 return 0;
1487 }
1488 return snprintf(buf, PAGE_SIZE, retMsg);
1489 }
1490
1491 static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL);
1492
1493 /***********************************************************************
1494 * support routines for the 'stylus_upper' file. Note that this file
1495 * both displays current setting and allows for setting changing.
1496 */
1497 static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf)
1498 {
1499 struct aiptek *aiptek = dev_get_drvdata(dev);
1500 char *s;
1501
1502 if (aiptek == NULL)
1503 return 0;
1504
1505 switch (aiptek->curSetting.stylusButtonUpper) {
1506 case AIPTEK_STYLUS_UPPER_BUTTON:
1507 s = "upper";
1508 break;
1509
1510 case AIPTEK_STYLUS_LOWER_BUTTON:
1511 s = "lower";
1512 break;
1513
1514 default:
1515 s = "unknown";
1516 break;
1517 }
1518 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1519 }
1520
1521 static ssize_t
1522 store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1523 {
1524 struct aiptek *aiptek = dev_get_drvdata(dev);
1525
1526 if (aiptek == NULL)
1527 return 0;
1528
1529 if (strcmp(buf, "upper") == 0) {
1530 aiptek->newSetting.stylusButtonUpper =
1531 AIPTEK_STYLUS_UPPER_BUTTON;
1532 } else if (strcmp(buf, "lower") == 0) {
1533 aiptek->newSetting.stylusButtonUpper =
1534 AIPTEK_STYLUS_LOWER_BUTTON;
1535 }
1536 return count;
1537 }
1538
1539 static DEVICE_ATTR(stylus_upper,
1540 S_IRUGO | S_IWUGO,
1541 show_tabletStylusUpper, store_tabletStylusUpper);
1542
1543 /***********************************************************************
1544 * support routines for the 'stylus_lower' file. Note that this file
1545 * both displays current setting and allows for setting changing.
1546 */
1547 static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf)
1548 {
1549 struct aiptek *aiptek = dev_get_drvdata(dev);
1550 char *s;
1551
1552 if (aiptek == NULL)
1553 return 0;
1554
1555 switch (aiptek->curSetting.stylusButtonLower) {
1556 case AIPTEK_STYLUS_UPPER_BUTTON:
1557 s = "upper";
1558 break;
1559
1560 case AIPTEK_STYLUS_LOWER_BUTTON:
1561 s = "lower";
1562 break;
1563
1564 default:
1565 s = "unknown";
1566 break;
1567 }
1568 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1569 }
1570
1571 static ssize_t
1572 store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1573 {
1574 struct aiptek *aiptek = dev_get_drvdata(dev);
1575
1576 if (aiptek == NULL)
1577 return 0;
1578
1579 if (strcmp(buf, "upper") == 0) {
1580 aiptek->newSetting.stylusButtonLower =
1581 AIPTEK_STYLUS_UPPER_BUTTON;
1582 } else if (strcmp(buf, "lower") == 0) {
1583 aiptek->newSetting.stylusButtonLower =
1584 AIPTEK_STYLUS_LOWER_BUTTON;
1585 }
1586 return count;
1587 }
1588
1589 static DEVICE_ATTR(stylus_lower,
1590 S_IRUGO | S_IWUGO,
1591 show_tabletStylusLower, store_tabletStylusLower);
1592
1593 /***********************************************************************
1594 * support routines for the 'mouse_left' file. Note that this file
1595 * both displays current setting and allows for setting changing.
1596 */
1597 static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf)
1598 {
1599 struct aiptek *aiptek = dev_get_drvdata(dev);
1600 char *s;
1601
1602 if (aiptek == NULL)
1603 return 0;
1604
1605 switch (aiptek->curSetting.mouseButtonLeft) {
1606 case AIPTEK_MOUSE_LEFT_BUTTON:
1607 s = "left";
1608 break;
1609
1610 case AIPTEK_MOUSE_MIDDLE_BUTTON:
1611 s = "middle";
1612 break;
1613
1614 case AIPTEK_MOUSE_RIGHT_BUTTON:
1615 s = "right";
1616 break;
1617
1618 default:
1619 s = "unknown";
1620 break;
1621 }
1622 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1623 }
1624
1625 static ssize_t
1626 store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1627 {
1628 struct aiptek *aiptek = dev_get_drvdata(dev);
1629
1630 if (aiptek == NULL)
1631 return 0;
1632
1633 if (strcmp(buf, "left") == 0) {
1634 aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
1635 } else if (strcmp(buf, "middle") == 0) {
1636 aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_MIDDLE_BUTTON;
1637 } else if (strcmp(buf, "right") == 0) {
1638 aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_RIGHT_BUTTON;
1639 }
1640 return count;
1641 }
1642
1643 static DEVICE_ATTR(mouse_left,
1644 S_IRUGO | S_IWUGO,
1645 show_tabletMouseLeft, store_tabletMouseLeft);
1646
1647 /***********************************************************************
1648 * support routines for the 'mouse_middle' file. Note that this file
1649 * both displays current setting and allows for setting changing.
1650 */
1651 static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf)
1652 {
1653 struct aiptek *aiptek = dev_get_drvdata(dev);
1654 char *s;
1655
1656 if (aiptek == NULL)
1657 return 0;
1658
1659 switch (aiptek->curSetting.mouseButtonMiddle) {
1660 case AIPTEK_MOUSE_LEFT_BUTTON:
1661 s = "left";
1662 break;
1663
1664 case AIPTEK_MOUSE_MIDDLE_BUTTON:
1665 s = "middle";
1666 break;
1667
1668 case AIPTEK_MOUSE_RIGHT_BUTTON:
1669 s = "right";
1670 break;
1671
1672 default:
1673 s = "unknown";
1674 break;
1675 }
1676 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1677 }
1678
1679 static ssize_t
1680 store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1681 {
1682 struct aiptek *aiptek = dev_get_drvdata(dev);
1683
1684 if (aiptek == NULL)
1685 return 0;
1686
1687 if (strcmp(buf, "left") == 0) {
1688 aiptek->newSetting.mouseButtonMiddle = AIPTEK_MOUSE_LEFT_BUTTON;
1689 } else if (strcmp(buf, "middle") == 0) {
1690 aiptek->newSetting.mouseButtonMiddle =
1691 AIPTEK_MOUSE_MIDDLE_BUTTON;
1692 } else if (strcmp(buf, "right") == 0) {
1693 aiptek->newSetting.mouseButtonMiddle =
1694 AIPTEK_MOUSE_RIGHT_BUTTON;
1695 }
1696 return count;
1697 }
1698
1699 static DEVICE_ATTR(mouse_middle,
1700 S_IRUGO | S_IWUGO,
1701 show_tabletMouseMiddle, store_tabletMouseMiddle);
1702
1703 /***********************************************************************
1704 * support routines for the 'mouse_right' file. Note that this file
1705 * both displays current setting and allows for setting changing.
1706 */
1707 static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf)
1708 {
1709 struct aiptek *aiptek = dev_get_drvdata(dev);
1710 char *s;
1711
1712 if (aiptek == NULL)
1713 return 0;
1714
1715 switch (aiptek->curSetting.mouseButtonRight) {
1716 case AIPTEK_MOUSE_LEFT_BUTTON:
1717 s = "left";
1718 break;
1719
1720 case AIPTEK_MOUSE_MIDDLE_BUTTON:
1721 s = "middle";
1722 break;
1723
1724 case AIPTEK_MOUSE_RIGHT_BUTTON:
1725 s = "right";
1726 break;
1727
1728 default:
1729 s = "unknown";
1730 break;
1731 }
1732 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1733 }
1734
1735 static ssize_t
1736 store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1737 {
1738 struct aiptek *aiptek = dev_get_drvdata(dev);
1739
1740 if (aiptek == NULL)
1741 return 0;
1742
1743 if (strcmp(buf, "left") == 0) {
1744 aiptek->newSetting.mouseButtonRight = AIPTEK_MOUSE_LEFT_BUTTON;
1745 } else if (strcmp(buf, "middle") == 0) {
1746 aiptek->newSetting.mouseButtonRight =
1747 AIPTEK_MOUSE_MIDDLE_BUTTON;
1748 } else if (strcmp(buf, "right") == 0) {
1749 aiptek->newSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
1750 }
1751 return count;
1752 }
1753
1754 static DEVICE_ATTR(mouse_right,
1755 S_IRUGO | S_IWUGO,
1756 show_tabletMouseRight, store_tabletMouseRight);
1757
1758 /***********************************************************************
1759 * support routines for the 'wheel' file. Note that this file
1760 * both displays current setting and allows for setting changing.
1761 */
1762 static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf)
1763 {
1764 struct aiptek *aiptek = dev_get_drvdata(dev);
1765
1766 if (aiptek == NULL)
1767 return 0;
1768
1769 if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
1770 return snprintf(buf, PAGE_SIZE, "disable\n");
1771 } else {
1772 return snprintf(buf, PAGE_SIZE, "%d\n",
1773 aiptek->curSetting.wheel);
1774 }
1775 }
1776
1777 static ssize_t
1778 store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1779 {
1780 struct aiptek *aiptek = dev_get_drvdata(dev);
1781
1782 if (aiptek == NULL)
1783 return 0;
1784
1785 aiptek->newSetting.wheel = (int)simple_strtol(buf, NULL, 10);
1786 return count;
1787 }
1788
1789 static DEVICE_ATTR(wheel,
1790 S_IRUGO | S_IWUGO, show_tabletWheel, store_tabletWheel);
1791
1792 /***********************************************************************
1793 * support routines for the 'execute' file. Note that this file
1794 * both displays current setting and allows for setting changing.
1795 */
1796 static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf)
1797 {
1798 struct aiptek *aiptek = dev_get_drvdata(dev);
1799
1800 if (aiptek == NULL)
1801 return 0;
1802
1803 /* There is nothing useful to display, so a one-line manual
1804 * is in order...
1805 */
1806 return snprintf(buf, PAGE_SIZE,
1807 "Write anything to this file to program your tablet.\n");
1808 }
1809
1810 static ssize_t
1811 store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1812 {
1813 struct aiptek *aiptek = dev_get_drvdata(dev);
1814
1815 if (aiptek == NULL)
1816 return 0;
1817
1818 /* We do not care what you write to this file. Merely the action
1819 * of writing to this file triggers a tablet reprogramming.
1820 */
1821 memcpy(&aiptek->curSetting, &aiptek->newSetting,
1822 sizeof(struct aiptek_settings));
1823
1824 if (aiptek_program_tablet(aiptek) < 0)
1825 return -EIO;
1826
1827 return count;
1828 }
1829
1830 static DEVICE_ATTR(execute,
1831 S_IRUGO | S_IWUGO, show_tabletExecute, store_tabletExecute);
1832
1833 /***********************************************************************
1834 * support routines for the 'odm_code' file. Note that this file
1835 * only displays current setting.
1836 */
1837 static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf)
1838 {
1839 struct aiptek *aiptek = dev_get_drvdata(dev);
1840
1841 if (aiptek == NULL)
1842 return 0;
1843
1844 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode);
1845 }
1846
1847 static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL);
1848
1849 /***********************************************************************
1850 * support routines for the 'model_code' file. Note that this file
1851 * only displays current setting.
1852 */
1853 static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf)
1854 {
1855 struct aiptek *aiptek = dev_get_drvdata(dev);
1856
1857 if (aiptek == NULL)
1858 return 0;
1859
1860 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode);
1861 }
1862
1863 static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL);
1864
1865 /***********************************************************************
1866 * support routines for the 'firmware_code' file. Note that this file
1867 * only displays current setting.
1868 */
1869 static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf)
1870 {
1871 struct aiptek *aiptek = dev_get_drvdata(dev);
1872
1873 if (aiptek == NULL)
1874 return 0;
1875
1876 return snprintf(buf, PAGE_SIZE, "%04x\n",
1877 aiptek->features.firmwareCode);
1878 }
1879
1880 static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
1881
1882 /***********************************************************************
1883 * This routine removes all existing sysfs files managed by this device
1884 * driver.
1885 */
1886 static void aiptek_delete_files(struct device *dev)
1887 {
1888 device_remove_file(dev, &dev_attr_size);
1889 device_remove_file(dev, &dev_attr_product_id);
1890 device_remove_file(dev, &dev_attr_vendor_id);
1891 device_remove_file(dev, &dev_attr_vendor);
1892 device_remove_file(dev, &dev_attr_product);
1893 device_remove_file(dev, &dev_attr_pointer_mode);
1894 device_remove_file(dev, &dev_attr_coordinate_mode);
1895 device_remove_file(dev, &dev_attr_tool_mode);
1896 device_remove_file(dev, &dev_attr_xtilt);
1897 device_remove_file(dev, &dev_attr_ytilt);
1898 device_remove_file(dev, &dev_attr_jitter);
1899 device_remove_file(dev, &dev_attr_delay);
1900 device_remove_file(dev, &dev_attr_input_path);
1901 device_remove_file(dev, &dev_attr_event_count);
1902 device_remove_file(dev, &dev_attr_diagnostic);
1903 device_remove_file(dev, &dev_attr_odm_code);
1904 device_remove_file(dev, &dev_attr_model_code);
1905 device_remove_file(dev, &dev_attr_firmware_code);
1906 device_remove_file(dev, &dev_attr_stylus_lower);
1907 device_remove_file(dev, &dev_attr_stylus_upper);
1908 device_remove_file(dev, &dev_attr_mouse_left);
1909 device_remove_file(dev, &dev_attr_mouse_middle);
1910 device_remove_file(dev, &dev_attr_mouse_right);
1911 device_remove_file(dev, &dev_attr_wheel);
1912 device_remove_file(dev, &dev_attr_execute);
1913 }
1914
1915 /***********************************************************************
1916 * This routine creates the sysfs files managed by this device
1917 * driver.
1918 */
1919 static int aiptek_add_files(struct device *dev)
1920 {
1921 int ret;
1922
1923 if ((ret = device_create_file(dev, &dev_attr_size)) ||
1924 (ret = device_create_file(dev, &dev_attr_product_id)) ||
1925 (ret = device_create_file(dev, &dev_attr_vendor_id)) ||
1926 (ret = device_create_file(dev, &dev_attr_vendor)) ||
1927 (ret = device_create_file(dev, &dev_attr_product)) ||
1928 (ret = device_create_file(dev, &dev_attr_pointer_mode)) ||
1929 (ret = device_create_file(dev, &dev_attr_coordinate_mode)) ||
1930 (ret = device_create_file(dev, &dev_attr_tool_mode)) ||
1931 (ret = device_create_file(dev, &dev_attr_xtilt)) ||
1932 (ret = device_create_file(dev, &dev_attr_ytilt)) ||
1933 (ret = device_create_file(dev, &dev_attr_jitter)) ||
1934 (ret = device_create_file(dev, &dev_attr_delay)) ||
1935 (ret = device_create_file(dev, &dev_attr_input_path)) ||
1936 (ret = device_create_file(dev, &dev_attr_event_count)) ||
1937 (ret = device_create_file(dev, &dev_attr_diagnostic)) ||
1938 (ret = device_create_file(dev, &dev_attr_odm_code)) ||
1939 (ret = device_create_file(dev, &dev_attr_model_code)) ||
1940 (ret = device_create_file(dev, &dev_attr_firmware_code)) ||
1941 (ret = device_create_file(dev, &dev_attr_stylus_lower)) ||
1942 (ret = device_create_file(dev, &dev_attr_stylus_upper)) ||
1943 (ret = device_create_file(dev, &dev_attr_mouse_left)) ||
1944 (ret = device_create_file(dev, &dev_attr_mouse_middle)) ||
1945 (ret = device_create_file(dev, &dev_attr_mouse_right)) ||
1946 (ret = device_create_file(dev, &dev_attr_wheel)) ||
1947 (ret = device_create_file(dev, &dev_attr_execute))) {
1948 err("aiptek: killing own sysfs device files\n");
1949 aiptek_delete_files(dev);
1950 }
1951 return ret;
1952 }
1953
1954 /***********************************************************************
1955 * This routine is called when a tablet has been identified. It basically
1956 * sets up the tablet and the driver's internal structures.
1957 */
1958 static int
1959 aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
1960 {
1961 struct usb_device *usbdev = interface_to_usbdev(intf);
1962 struct usb_endpoint_descriptor *endpoint;
1963 struct aiptek *aiptek;
1964 struct input_dev *inputdev;
1965 struct input_handle *inputhandle;
1966 struct list_head *node, *next;
1967 int i;
1968 int speeds[] = { 0,
1969 AIPTEK_PROGRAMMABLE_DELAY_50,
1970 AIPTEK_PROGRAMMABLE_DELAY_400,
1971 AIPTEK_PROGRAMMABLE_DELAY_25,
1972 AIPTEK_PROGRAMMABLE_DELAY_100,
1973 AIPTEK_PROGRAMMABLE_DELAY_200,
1974 AIPTEK_PROGRAMMABLE_DELAY_300
1975 };
1976
1977 /* programmableDelay is where the command-line specified
1978 * delay is kept. We make it the first element of speeds[],
1979 * so therefore, your override speed is tried first, then the
1980 * remainder. Note that the default value of 400ms will be tried
1981 * if you do not specify any command line parameter.
1982 */
1983 speeds[0] = programmableDelay;
1984
1985 aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL);
1986 inputdev = input_allocate_device();
1987 if (!aiptek || !inputdev)
1988 goto fail1;
1989
1990 aiptek->data = usb_buffer_alloc(usbdev, AIPTEK_PACKET_LENGTH,
1991 SLAB_ATOMIC, &aiptek->data_dma);
1992 if (!aiptek->data)
1993 goto fail1;
1994
1995 aiptek->urb = usb_alloc_urb(0, GFP_KERNEL);
1996 if (!aiptek->urb)
1997 goto fail2;
1998
1999 aiptek->inputdev = inputdev;
2000 aiptek->usbdev = usbdev;
2001 aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber;
2002 aiptek->inDelay = 0;
2003 aiptek->endDelay = 0;
2004 aiptek->previousJitterable = 0;
2005
2006 /* Set up the curSettings struct. Said struct contains the current
2007 * programmable parameters. The newSetting struct contains changes
2008 * the user makes to the settings via the sysfs interface. Those
2009 * changes are not "committed" to curSettings until the user
2010 * writes to the sysfs/.../execute file.
2011 */
2012 aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
2013 aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE;
2014 aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
2015 aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE;
2016 aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE;
2017 aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
2018 aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON;
2019 aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
2020 aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON;
2021 aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON;
2022 aiptek->curSetting.jitterDelay = jitterDelay;
2023 aiptek->curSetting.programmableDelay = programmableDelay;
2024
2025 /* Both structs should have equivalent settings
2026 */
2027 aiptek->newSetting = aiptek->curSetting;
2028
2029 /* Determine the usb devices' physical path.
2030 * Asketh not why we always pretend we're using "../input0",
2031 * but I suspect this will have to be refactored one
2032 * day if a single USB device can be a keyboard & a mouse
2033 * & a tablet, and the inputX number actually will tell
2034 * us something...
2035 */
2036 usb_make_path(usbdev, aiptek->features.usbPath,
2037 sizeof(aiptek->features.usbPath));
2038 strlcat(aiptek->features.usbPath, "/input0",
2039 sizeof(aiptek->features.usbPath));
2040
2041 /* Set up client data, pointers to open and close routines
2042 * for the input device.
2043 */
2044 inputdev->name = "Aiptek";
2045 inputdev->phys = aiptek->features.usbPath;
2046 usb_to_input_id(usbdev, &inputdev->id);
2047 inputdev->cdev.dev = &intf->dev;
2048 inputdev->private = aiptek;
2049 inputdev->open = aiptek_open;
2050 inputdev->close = aiptek_close;
2051
2052 /* Now program the capacities of the tablet, in terms of being
2053 * an input device.
2054 */
2055 inputdev->evbit[0] |= BIT(EV_KEY)
2056 | BIT(EV_ABS)
2057 | BIT(EV_REL)
2058 | BIT(EV_MSC);
2059
2060 inputdev->absbit[0] |= BIT(ABS_MISC);
2061
2062 inputdev->relbit[0] |=
2063 (BIT(REL_X) | BIT(REL_Y) | BIT(REL_WHEEL) | BIT(REL_MISC));
2064
2065 inputdev->keybit[LONG(BTN_LEFT)] |=
2066 (BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE));
2067
2068 inputdev->keybit[LONG(BTN_DIGI)] |=
2069 (BIT(BTN_TOOL_PEN) |
2070 BIT(BTN_TOOL_RUBBER) |
2071 BIT(BTN_TOOL_PENCIL) |
2072 BIT(BTN_TOOL_AIRBRUSH) |
2073 BIT(BTN_TOOL_BRUSH) |
2074 BIT(BTN_TOOL_MOUSE) |
2075 BIT(BTN_TOOL_LENS) |
2076 BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2));
2077
2078 inputdev->mscbit[0] = BIT(MSC_SERIAL);
2079
2080 /* Programming the tablet macro keys needs to be done with a for loop
2081 * as the keycodes are discontiguous.
2082 */
2083 for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i)
2084 set_bit(macroKeyEvents[i], inputdev->keybit);
2085
2086 /*
2087 * Program the input device coordinate capacities. We do not yet
2088 * know what maximum X, Y, and Z values are, so we're putting fake
2089 * values in. Later, we'll ask the tablet to put in the correct
2090 * values.
2091 */
2092 input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0);
2093 input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0);
2094 input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0);
2095 input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
2096 input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
2097 input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
2098
2099 endpoint = &intf->altsetting[0].endpoint[0].desc;
2100
2101 /* Go set up our URB, which is called when the tablet receives
2102 * input.
2103 */
2104 usb_fill_int_urb(aiptek->urb,
2105 aiptek->usbdev,
2106 usb_rcvintpipe(aiptek->usbdev,
2107 endpoint->bEndpointAddress),
2108 aiptek->data, 8, aiptek_irq, aiptek,
2109 endpoint->bInterval);
2110
2111 aiptek->urb->transfer_dma = aiptek->data_dma;
2112 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
2113
2114 /* Program the tablet. This sets the tablet up in the mode
2115 * specified in newSetting, and also queries the tablet's
2116 * physical capacities.
2117 *
2118 * Sanity check: if a tablet doesn't like the slow programmatic
2119 * delay, we often get sizes of 0x0. Let's use that as an indicator
2120 * to try faster delays, up to 25 ms. If that logic fails, well, you'll
2121 * have to explain to us how your tablet thinks it's 0x0, and yet that's
2122 * not an error :-)
2123 */
2124
2125 for (i = 0; i < ARRAY_SIZE(speeds); ++i) {
2126 aiptek->curSetting.programmableDelay = speeds[i];
2127 (void)aiptek_program_tablet(aiptek);
2128 if (aiptek->inputdev->absmax[ABS_X] > 0) {
2129 info("input: Aiptek using %d ms programming speed\n",
2130 aiptek->curSetting.programmableDelay);
2131 break;
2132 }
2133 }
2134
2135 /* Register the tablet as an Input Device
2136 */
2137 input_register_device(aiptek->inputdev);
2138
2139 /* We now will look for the evdev device which is mapped to
2140 * the tablet. The partial name is kept in the link list of
2141 * input_handles associated with this input device.
2142 * What identifies an evdev input_handler is that it begins
2143 * with 'event', continues with a digit, and that in turn
2144 * is mapped to input/eventN.
2145 */
2146 list_for_each_safe(node, next, &inputdev->h_list) {
2147 inputhandle = to_handle(node);
2148 if (strncmp(inputhandle->name, "event", 5) == 0) {
2149 strcpy(aiptek->features.inputPath, inputhandle->name);
2150 break;
2151 }
2152 }
2153
2154 /* Associate this driver's struct with the usb interface.
2155 */
2156 usb_set_intfdata(intf, aiptek);
2157
2158 /* Set up the sysfs files
2159 */
2160 aiptek_add_files(&intf->dev);
2161
2162 /* Make sure the evdev module is loaded. Assuming evdev IS a module :-)
2163 */
2164 if (request_module("evdev") != 0)
2165 info("aiptek: error loading 'evdev' module");
2166
2167 return 0;
2168
2169 fail2: usb_buffer_free(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
2170 aiptek->data_dma);
2171 fail1: input_free_device(inputdev);
2172 kfree(aiptek);
2173 return -ENOMEM;
2174 }
2175
2176 /* Forward declaration */
2177 static void aiptek_disconnect(struct usb_interface *intf);
2178
2179 static struct usb_driver aiptek_driver = {
2180 .name = "aiptek",
2181 .probe = aiptek_probe,
2182 .disconnect = aiptek_disconnect,
2183 .id_table = aiptek_ids,
2184 };
2185
2186 /***********************************************************************
2187 * Deal with tablet disconnecting from the system.
2188 */
2189 static void aiptek_disconnect(struct usb_interface *intf)
2190 {
2191 struct aiptek *aiptek = usb_get_intfdata(intf);
2192
2193 /* Disassociate driver's struct with usb interface
2194 */
2195 usb_set_intfdata(intf, NULL);
2196 if (aiptek != NULL) {
2197 /* Free & unhook everything from the system.
2198 */
2199 usb_kill_urb(aiptek->urb);
2200 input_unregister_device(aiptek->inputdev);
2201 aiptek_delete_files(&intf->dev);
2202 usb_free_urb(aiptek->urb);
2203 usb_buffer_free(interface_to_usbdev(intf),
2204 AIPTEK_PACKET_LENGTH,
2205 aiptek->data, aiptek->data_dma);
2206 kfree(aiptek);
2207 }
2208 }
2209
2210 static int __init aiptek_init(void)
2211 {
2212 int result = usb_register(&aiptek_driver);
2213 if (result == 0) {
2214 info(DRIVER_VERSION ": " DRIVER_AUTHOR);
2215 info(DRIVER_DESC);
2216 }
2217 return result;
2218 }
2219
2220 static void __exit aiptek_exit(void)
2221 {
2222 usb_deregister(&aiptek_driver);
2223 }
2224
2225 MODULE_AUTHOR(DRIVER_AUTHOR);
2226 MODULE_DESCRIPTION(DRIVER_DESC);
2227 MODULE_LICENSE("GPL");
2228
2229 module_param(programmableDelay, int, 0);
2230 MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming");
2231 module_param(jitterDelay, int, 0);
2232 MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay");
2233
2234 module_init(aiptek_init);
2235 module_exit(aiptek_exit);
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