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[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, struct pt_regs *regs)
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 input_regs(inputdev, regs);
446
447 x = aiptek_convert_from_2s_complement(data[2]);
448 y = aiptek_convert_from_2s_complement(data[3]);
449
450 /* jitterable keeps track of whether any button has been pressed.
451 * We're also using it to remap the physical mouse button mask
452 * to pseudo-settings. (We don't specifically care about it's
453 * value after moving/transposing mouse button bitmasks, except
454 * that a non-zero value indicates that one or more
455 * mouse button was pressed.)
456 */
457 jitterable = data[5] & 0x07;
458
459 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
460 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
461 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
462
463 input_report_key(inputdev, BTN_LEFT, left);
464 input_report_key(inputdev, BTN_MIDDLE, middle);
465 input_report_key(inputdev, BTN_RIGHT, right);
466 input_report_rel(inputdev, REL_X, x);
467 input_report_rel(inputdev, REL_Y, y);
468 input_report_rel(inputdev, REL_MISC, 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
469
470 /* Wheel support is in the form of a single-event
471 * firing.
472 */
473 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
474 input_report_rel(inputdev, REL_WHEEL,
475 aiptek->curSetting.wheel);
476 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
477 }
478 input_sync(inputdev);
479 }
480 }
481 /* Report 2 is delivered only by the stylus, and delivers
482 * absolute coordinates.
483 */
484 else if (data[0] == 2) {
485 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
486 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
487 } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE
488 (aiptek->curSetting.pointerMode)) {
489 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
490 } else {
491 input_regs(inputdev, regs);
492
493 x = le16_to_cpu(get_unaligned((__le16 *) (data + 1)));
494 y = le16_to_cpu(get_unaligned((__le16 *) (data + 3)));
495 z = le16_to_cpu(get_unaligned((__le16 *) (data + 6)));
496
497 p = (data[5] & 0x01) != 0 ? 1 : 0;
498 dv = (data[5] & 0x02) != 0 ? 1 : 0;
499 tip = (data[5] & 0x04) != 0 ? 1 : 0;
500
501 /* Use jitterable to re-arrange button masks
502 */
503 jitterable = data[5] & 0x18;
504
505 bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
506 pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
507
508 /* dv indicates 'data valid' (e.g., the tablet is in sync
509 * and has delivered a "correct" report) We will ignore
510 * all 'bad' reports...
511 */
512 if (dv != 0) {
513 /* If we've not already sent a tool_button_?? code, do
514 * so now. Then set FIRED_BIT so it won't be resent unless
515 * the user forces FIRED_BIT off.
516 */
517 if (TOOL_BUTTON_FIRED
518 (aiptek->curSetting.toolMode) == 0) {
519 input_report_key(inputdev,
520 TOOL_BUTTON(aiptek->curSetting.toolMode),
521 1);
522 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
523 }
524
525 if (p != 0) {
526 input_report_abs(inputdev, ABS_X, x);
527 input_report_abs(inputdev, ABS_Y, y);
528 input_report_abs(inputdev, ABS_PRESSURE, z);
529
530 input_report_key(inputdev, BTN_TOUCH, tip);
531 input_report_key(inputdev, BTN_STYLUS, bs);
532 input_report_key(inputdev, BTN_STYLUS2, pck);
533
534 if (aiptek->curSetting.xTilt !=
535 AIPTEK_TILT_DISABLE) {
536 input_report_abs(inputdev,
537 ABS_TILT_X,
538 aiptek->curSetting.xTilt);
539 }
540 if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) {
541 input_report_abs(inputdev,
542 ABS_TILT_Y,
543 aiptek->curSetting.yTilt);
544 }
545
546 /* Wheel support is in the form of a single-event
547 * firing.
548 */
549 if (aiptek->curSetting.wheel !=
550 AIPTEK_WHEEL_DISABLE) {
551 input_report_abs(inputdev,
552 ABS_WHEEL,
553 aiptek->curSetting.wheel);
554 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
555 }
556 }
557 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS);
558 input_sync(inputdev);
559 }
560 }
561 }
562 /* Report 3's come from the mouse in absolute mode.
563 */
564 else if (data[0] == 3) {
565 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
566 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
567 } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE
568 (aiptek->curSetting.pointerMode)) {
569 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
570 } else {
571 input_regs(inputdev, regs);
572 x = le16_to_cpu(get_unaligned((__le16 *) (data + 1)));
573 y = le16_to_cpu(get_unaligned((__le16 *) (data + 3)));
574
575 jitterable = data[5] & 0x1c;
576
577 p = (data[5] & 0x01) != 0 ? 1 : 0;
578 dv = (data[5] & 0x02) != 0 ? 1 : 0;
579 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
580 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
581 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
582
583 if (dv != 0) {
584 /* If we've not already sent a tool_button_?? code, do
585 * so now. Then set FIRED_BIT so it won't be resent unless
586 * the user forces FIRED_BIT off.
587 */
588 if (TOOL_BUTTON_FIRED
589 (aiptek->curSetting.toolMode) == 0) {
590 input_report_key(inputdev,
591 TOOL_BUTTON(aiptek->curSetting.toolMode),
592 1);
593 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
594 }
595
596 if (p != 0) {
597 input_report_abs(inputdev, ABS_X, x);
598 input_report_abs(inputdev, ABS_Y, y);
599
600 input_report_key(inputdev, BTN_LEFT, left);
601 input_report_key(inputdev, BTN_MIDDLE, middle);
602 input_report_key(inputdev, BTN_RIGHT, right);
603
604 /* Wheel support is in the form of a single-event
605 * firing.
606 */
607 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
608 input_report_abs(inputdev,
609 ABS_WHEEL,
610 aiptek->curSetting.wheel);
611 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
612 }
613 }
614 input_report_rel(inputdev, REL_MISC, p | AIPTEK_REPORT_TOOL_MOUSE);
615 input_sync(inputdev);
616 }
617 }
618 }
619 /* Report 4s come from the macro keys when pressed by stylus
620 */
621 else if (data[0] == 4) {
622 jitterable = data[1] & 0x18;
623
624 p = (data[1] & 0x01) != 0 ? 1 : 0;
625 dv = (data[1] & 0x02) != 0 ? 1 : 0;
626 tip = (data[1] & 0x04) != 0 ? 1 : 0;
627 bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
628 pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
629
630 macro = data[3];
631 z = le16_to_cpu(get_unaligned((__le16 *) (data + 4)));
632
633 if (dv != 0) {
634 input_regs(inputdev, regs);
635
636 /* If we've not already sent a tool_button_?? code, do
637 * so now. Then set FIRED_BIT so it won't be resent unless
638 * the user forces FIRED_BIT off.
639 */
640 if (TOOL_BUTTON_FIRED(aiptek->curSetting.toolMode) == 0) {
641 input_report_key(inputdev,
642 TOOL_BUTTON(aiptek->curSetting.toolMode),
643 1);
644 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
645 }
646
647 if (p != 0) {
648 input_report_key(inputdev, BTN_TOUCH, tip);
649 input_report_key(inputdev, BTN_STYLUS, bs);
650 input_report_key(inputdev, BTN_STYLUS2, pck);
651 input_report_abs(inputdev, ABS_PRESSURE, z);
652 }
653
654 /* For safety, we're sending key 'break' codes for the
655 * neighboring macro keys.
656 */
657 if (macro > 0) {
658 input_report_key(inputdev,
659 macroKeyEvents[macro - 1], 0);
660 }
661 if (macro < 25) {
662 input_report_key(inputdev,
663 macroKeyEvents[macro + 1], 0);
664 }
665 input_report_key(inputdev, macroKeyEvents[macro], p);
666 input_report_abs(inputdev, ABS_MISC,
667 p | AIPTEK_REPORT_TOOL_STYLUS);
668 input_sync(inputdev);
669 }
670 }
671 /* Report 5s come from the macro keys when pressed by mouse
672 */
673 else if (data[0] == 5) {
674 jitterable = data[1] & 0x1c;
675
676 p = (data[1] & 0x01) != 0 ? 1 : 0;
677 dv = (data[1] & 0x02) != 0 ? 1 : 0;
678 left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
679 right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
680 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
681 macro = data[3];
682
683 if (dv != 0) {
684 input_regs(inputdev, regs);
685
686 /* If we've not already sent a tool_button_?? code, do
687 * so now. Then set FIRED_BIT so it won't be resent unless
688 * the user forces FIRED_BIT off.
689 */
690 if (TOOL_BUTTON_FIRED(aiptek->curSetting.toolMode) == 0) {
691 input_report_key(inputdev,
692 TOOL_BUTTON(aiptek->curSetting.toolMode),
693 1);
694 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
695 }
696
697 if (p != 0) {
698 input_report_key(inputdev, BTN_LEFT, left);
699 input_report_key(inputdev, BTN_MIDDLE, middle);
700 input_report_key(inputdev, BTN_RIGHT, right);
701 }
702
703 /* For safety, we're sending key 'break' codes for the
704 * neighboring macro keys.
705 */
706 if (macro > 0) {
707 input_report_key(inputdev,
708 macroKeyEvents[macro - 1], 0);
709 }
710 if (macro < 25) {
711 input_report_key(inputdev,
712 macroKeyEvents[macro + 1], 0);
713 }
714
715 input_report_key(inputdev, macroKeyEvents[macro], 1);
716 input_report_rel(inputdev, ABS_MISC,
717 p | AIPTEK_REPORT_TOOL_MOUSE);
718 input_sync(inputdev);
719 }
720 }
721 /* We have no idea which tool can generate a report 6. Theoretically,
722 * neither need to, having been given reports 4 & 5 for such use.
723 * However, report 6 is the 'official-looking' report for macroKeys;
724 * reports 4 & 5 supposively are used to support unnamed, unknown
725 * hat switches (which just so happen to be the macroKeys.)
726 */
727 else if (data[0] == 6) {
728 macro = le16_to_cpu(get_unaligned((__le16 *) (data + 1)));
729 input_regs(inputdev, regs);
730
731 if (macro > 0) {
732 input_report_key(inputdev, macroKeyEvents[macro - 1],
733 0);
734 }
735 if (macro < 25) {
736 input_report_key(inputdev, macroKeyEvents[macro + 1],
737 0);
738 }
739
740 /* If we've not already sent a tool_button_?? code, do
741 * so now. Then set FIRED_BIT so it won't be resent unless
742 * the user forces FIRED_BIT off.
743 */
744 if (TOOL_BUTTON_FIRED(aiptek->curSetting.toolMode) == 0) {
745 input_report_key(inputdev,
746 TOOL_BUTTON(aiptek->curSetting.
747 toolMode), 1);
748 aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT;
749 }
750
751 input_report_key(inputdev, macroKeyEvents[macro], 1);
752 input_report_abs(inputdev, ABS_MISC,
753 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
754 input_sync(inputdev);
755 } else {
756 dbg("Unknown report %d", data[0]);
757 }
758
759 /* Jitter may occur when the user presses a button on the stlyus
760 * or the mouse. What we do to prevent that is wait 'x' milliseconds
761 * following a 'jitterable' event, which should give the hand some time
762 * stabilize itself.
763 *
764 * We just introduced aiptek->previousJitterable to carry forth the
765 * notion that jitter occurs when the button state changes from on to off:
766 * a person drawing, holding a button down is not subject to jittering.
767 * With that in mind, changing from upper button depressed to lower button
768 * WILL transition through a jitter delay.
769 */
770
771 if (aiptek->previousJitterable != jitterable &&
772 aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) {
773 aiptek->endDelay = jiffies +
774 ((aiptek->curSetting.jitterDelay * HZ) / 1000);
775 aiptek->inDelay = 1;
776 }
777 aiptek->previousJitterable = jitterable;
778
779 exit:
780 retval = usb_submit_urb(urb, GFP_ATOMIC);
781 if (retval != 0) {
782 err("%s - usb_submit_urb failed with result %d",
783 __FUNCTION__, retval);
784 }
785 }
786
787 /***********************************************************************
788 * These are the USB id's known so far. We do not identify them to
789 * specific Aiptek model numbers, because there has been overlaps,
790 * use, and reuse of id's in existing models. Certain models have
791 * been known to use more than one ID, indicative perhaps of
792 * manufacturing revisions. In any event, we consider these
793 * IDs to not be model-specific nor unique.
794 */
795 static const struct usb_device_id aiptek_ids[] = {
796 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)},
797 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)},
798 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)},
799 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)},
800 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)},
801 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)},
802 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)},
803 {}
804 };
805
806 MODULE_DEVICE_TABLE(usb, aiptek_ids);
807
808 /***********************************************************************
809 * Open an instance of the tablet driver.
810 */
811 static int aiptek_open(struct input_dev *inputdev)
812 {
813 struct aiptek *aiptek = inputdev->private;
814
815 aiptek->urb->dev = aiptek->usbdev;
816 if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0)
817 return -EIO;
818
819 return 0;
820 }
821
822 /***********************************************************************
823 * Close an instance of the tablet driver.
824 */
825 static void aiptek_close(struct input_dev *inputdev)
826 {
827 struct aiptek *aiptek = inputdev->private;
828
829 usb_kill_urb(aiptek->urb);
830 }
831
832 /***********************************************************************
833 * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x,
834 * where they were known as usb_set_report and usb_get_report.
835 */
836 static int
837 aiptek_set_report(struct aiptek *aiptek,
838 unsigned char report_type,
839 unsigned char report_id, void *buffer, int size)
840 {
841 return usb_control_msg(aiptek->usbdev,
842 usb_sndctrlpipe(aiptek->usbdev, 0),
843 USB_REQ_SET_REPORT,
844 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
845 USB_DIR_OUT, (report_type << 8) + report_id,
846 aiptek->ifnum, buffer, size, 5000);
847 }
848
849 static int
850 aiptek_get_report(struct aiptek *aiptek,
851 unsigned char report_type,
852 unsigned char report_id, void *buffer, int size)
853 {
854 return usb_control_msg(aiptek->usbdev,
855 usb_rcvctrlpipe(aiptek->usbdev, 0),
856 USB_REQ_GET_REPORT,
857 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
858 USB_DIR_IN, (report_type << 8) + report_id,
859 aiptek->ifnum, buffer, size, 5000);
860 }
861
862 /***********************************************************************
863 * Send a command to the tablet.
864 */
865 static int
866 aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data)
867 {
868 const int sizeof_buf = 3 * sizeof(u8);
869 int ret;
870 u8 *buf;
871
872 buf = kmalloc(sizeof_buf, GFP_KERNEL);
873 if (!buf)
874 return -ENOMEM;
875
876 buf[0] = 2;
877 buf[1] = command;
878 buf[2] = data;
879
880 if ((ret =
881 aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
882 dbg("aiptek_program: failed, tried to send: 0x%02x 0x%02x",
883 command, data);
884 }
885 kfree(buf);
886 return ret < 0 ? ret : 0;
887 }
888
889 /***********************************************************************
890 * Retrieve information from the tablet. Querying info is defined as first
891 * sending the {command,data} sequence as a command, followed by a wait
892 * (aka, "programmaticDelay") and then a "read" request.
893 */
894 static int
895 aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data)
896 {
897 const int sizeof_buf = 3 * sizeof(u8);
898 int ret;
899 u8 *buf;
900
901 buf = kmalloc(sizeof_buf, GFP_KERNEL);
902 if (!buf)
903 return -ENOMEM;
904
905 buf[0] = 2;
906 buf[1] = command;
907 buf[2] = data;
908
909 if (aiptek_command(aiptek, command, data) != 0) {
910 kfree(buf);
911 return -EIO;
912 }
913 msleep(aiptek->curSetting.programmableDelay);
914
915 if ((ret =
916 aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
917 dbg("aiptek_query failed: returned 0x%02x 0x%02x 0x%02x",
918 buf[0], buf[1], buf[2]);
919 ret = -EIO;
920 } else {
921 ret = le16_to_cpu(get_unaligned((__le16 *) (buf + 1)));
922 }
923 kfree(buf);
924 return ret;
925 }
926
927 /***********************************************************************
928 * Program the tablet into either absolute or relative mode.
929 * We also get information about the tablet's size.
930 */
931 static int aiptek_program_tablet(struct aiptek *aiptek)
932 {
933 int ret;
934 /* Execute Resolution500LPI */
935 if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0)
936 return ret;
937
938 /* Query getModelCode */
939 if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0)
940 return ret;
941 aiptek->features.modelCode = ret & 0xff;
942
943 /* Query getODMCode */
944 if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0)
945 return ret;
946 aiptek->features.odmCode = ret;
947
948 /* Query getFirmwareCode */
949 if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0)
950 return ret;
951 aiptek->features.firmwareCode = ret;
952
953 /* Query getXextension */
954 if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0)
955 return ret;
956 aiptek->inputdev->absmin[ABS_X] = 0;
957 aiptek->inputdev->absmax[ABS_X] = ret - 1;
958
959 /* Query getYextension */
960 if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0)
961 return ret;
962 aiptek->inputdev->absmin[ABS_Y] = 0;
963 aiptek->inputdev->absmax[ABS_Y] = ret - 1;
964
965 /* Query getPressureLevels */
966 if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0)
967 return ret;
968 aiptek->inputdev->absmin[ABS_PRESSURE] = 0;
969 aiptek->inputdev->absmax[ABS_PRESSURE] = ret - 1;
970
971 /* Depending on whether we are in absolute or relative mode, we will
972 * do a switchToTablet(absolute) or switchToMouse(relative) command.
973 */
974 if (aiptek->curSetting.coordinateMode ==
975 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
976 /* Execute switchToTablet */
977 if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) {
978 return ret;
979 }
980 } else {
981 /* Execute switchToMouse */
982 if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) {
983 return ret;
984 }
985 }
986
987 /* Enable the macro keys */
988 if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0)
989 return ret;
990 #if 0
991 /* Execute FilterOn */
992 if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0)
993 return ret;
994 #endif
995
996 /* Execute AutoGainOn */
997 if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0)
998 return ret;
999
1000 /* Reset the eventCount, so we track events from last (re)programming
1001 */
1002 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA;
1003 aiptek->eventCount = 0;
1004
1005 return 0;
1006 }
1007
1008 /***********************************************************************
1009 * Sysfs functions. Sysfs prefers that individually-tunable parameters
1010 * exist in their separate pseudo-files. Summary data that is immutable
1011 * may exist in a singular file so long as you don't define a writeable
1012 * interface.
1013 */
1014
1015 /***********************************************************************
1016 * support the 'size' file -- display support
1017 */
1018 static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf)
1019 {
1020 struct aiptek *aiptek = dev_get_drvdata(dev);
1021
1022 if (aiptek == NULL)
1023 return 0;
1024
1025 return snprintf(buf, PAGE_SIZE, "%dx%d\n",
1026 aiptek->inputdev->absmax[ABS_X] + 1,
1027 aiptek->inputdev->absmax[ABS_Y] + 1);
1028 }
1029
1030 /* These structs define the sysfs files, param #1 is the name of the
1031 * file, param 2 is the file permissions, param 3 & 4 are to the
1032 * output generator and input parser routines. Absence of a routine is
1033 * permitted -- it only means can't either 'cat' the file, or send data
1034 * to it.
1035 */
1036 static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL);
1037
1038 /***********************************************************************
1039 * support routines for the 'product_id' file
1040 */
1041 static ssize_t show_tabletProductId(struct device *dev, struct device_attribute *attr, char *buf)
1042 {
1043 struct aiptek *aiptek = dev_get_drvdata(dev);
1044
1045 if (aiptek == NULL)
1046 return 0;
1047
1048 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
1049 aiptek->inputdev->id.product);
1050 }
1051
1052 static DEVICE_ATTR(product_id, S_IRUGO, show_tabletProductId, NULL);
1053
1054 /***********************************************************************
1055 * support routines for the 'vendor_id' file
1056 */
1057 static ssize_t show_tabletVendorId(struct device *dev, struct device_attribute *attr, char *buf)
1058 {
1059 struct aiptek *aiptek = dev_get_drvdata(dev);
1060
1061 if (aiptek == NULL)
1062 return 0;
1063
1064 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->inputdev->id.vendor);
1065 }
1066
1067 static DEVICE_ATTR(vendor_id, S_IRUGO, show_tabletVendorId, NULL);
1068
1069 /***********************************************************************
1070 * support routines for the 'vendor' file
1071 */
1072 static ssize_t show_tabletManufacturer(struct device *dev, struct device_attribute *attr, char *buf)
1073 {
1074 struct aiptek *aiptek = dev_get_drvdata(dev);
1075 int retval;
1076
1077 if (aiptek == NULL)
1078 return 0;
1079
1080 retval = snprintf(buf, PAGE_SIZE, "%s\n", aiptek->usbdev->manufacturer);
1081 return retval;
1082 }
1083
1084 static DEVICE_ATTR(vendor, S_IRUGO, show_tabletManufacturer, NULL);
1085
1086 /***********************************************************************
1087 * support routines for the 'product' file
1088 */
1089 static ssize_t show_tabletProduct(struct device *dev, struct device_attribute *attr, char *buf)
1090 {
1091 struct aiptek *aiptek = dev_get_drvdata(dev);
1092 int retval;
1093
1094 if (aiptek == NULL)
1095 return 0;
1096
1097 retval = snprintf(buf, PAGE_SIZE, "%s\n", aiptek->usbdev->product);
1098 return retval;
1099 }
1100
1101 static DEVICE_ATTR(product, S_IRUGO, show_tabletProduct, NULL);
1102
1103 /***********************************************************************
1104 * support routines for the 'pointer_mode' file. Note that this file
1105 * both displays current setting and allows reprogramming.
1106 */
1107 static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf)
1108 {
1109 struct aiptek *aiptek = dev_get_drvdata(dev);
1110 char *s;
1111
1112 if (aiptek == NULL)
1113 return 0;
1114
1115 switch (aiptek->curSetting.pointerMode) {
1116 case AIPTEK_POINTER_ONLY_STYLUS_MODE:
1117 s = "stylus";
1118 break;
1119
1120 case AIPTEK_POINTER_ONLY_MOUSE_MODE:
1121 s = "mouse";
1122 break;
1123
1124 case AIPTEK_POINTER_EITHER_MODE:
1125 s = "either";
1126 break;
1127
1128 default:
1129 s = "unknown";
1130 break;
1131 }
1132 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1133 }
1134
1135 static ssize_t
1136 store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1137 {
1138 struct aiptek *aiptek = dev_get_drvdata(dev);
1139 if (aiptek == NULL)
1140 return 0;
1141
1142 if (strcmp(buf, "stylus") == 0) {
1143 aiptek->newSetting.pointerMode =
1144 AIPTEK_POINTER_ONLY_STYLUS_MODE;
1145 } else if (strcmp(buf, "mouse") == 0) {
1146 aiptek->newSetting.pointerMode = AIPTEK_POINTER_ONLY_MOUSE_MODE;
1147 } else if (strcmp(buf, "either") == 0) {
1148 aiptek->newSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
1149 }
1150 return count;
1151 }
1152
1153 static DEVICE_ATTR(pointer_mode,
1154 S_IRUGO | S_IWUGO,
1155 show_tabletPointerMode, store_tabletPointerMode);
1156
1157 /***********************************************************************
1158 * support routines for the 'coordinate_mode' file. Note that this file
1159 * both displays current setting and allows reprogramming.
1160 */
1161 static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf)
1162 {
1163 struct aiptek *aiptek = dev_get_drvdata(dev);
1164 char *s;
1165
1166 if (aiptek == NULL)
1167 return 0;
1168
1169 switch (aiptek->curSetting.coordinateMode) {
1170 case AIPTEK_COORDINATE_ABSOLUTE_MODE:
1171 s = "absolute";
1172 break;
1173
1174 case AIPTEK_COORDINATE_RELATIVE_MODE:
1175 s = "relative";
1176 break;
1177
1178 default:
1179 s = "unknown";
1180 break;
1181 }
1182 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1183 }
1184
1185 static ssize_t
1186 store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1187 {
1188 struct aiptek *aiptek = dev_get_drvdata(dev);
1189 if (aiptek == NULL)
1190 return 0;
1191
1192 if (strcmp(buf, "absolute") == 0) {
1193 aiptek->newSetting.pointerMode =
1194 AIPTEK_COORDINATE_ABSOLUTE_MODE;
1195 } else if (strcmp(buf, "relative") == 0) {
1196 aiptek->newSetting.pointerMode =
1197 AIPTEK_COORDINATE_RELATIVE_MODE;
1198 }
1199 return count;
1200 }
1201
1202 static DEVICE_ATTR(coordinate_mode,
1203 S_IRUGO | S_IWUGO,
1204 show_tabletCoordinateMode, store_tabletCoordinateMode);
1205
1206 /***********************************************************************
1207 * support routines for the 'tool_mode' file. Note that this file
1208 * both displays current setting and allows reprogramming.
1209 */
1210 static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf)
1211 {
1212 struct aiptek *aiptek = dev_get_drvdata(dev);
1213 char *s;
1214
1215 if (aiptek == NULL)
1216 return 0;
1217
1218 switch (TOOL_BUTTON(aiptek->curSetting.toolMode)) {
1219 case AIPTEK_TOOL_BUTTON_MOUSE_MODE:
1220 s = "mouse";
1221 break;
1222
1223 case AIPTEK_TOOL_BUTTON_ERASER_MODE:
1224 s = "eraser";
1225 break;
1226
1227 case AIPTEK_TOOL_BUTTON_PENCIL_MODE:
1228 s = "pencil";
1229 break;
1230
1231 case AIPTEK_TOOL_BUTTON_PEN_MODE:
1232 s = "pen";
1233 break;
1234
1235 case AIPTEK_TOOL_BUTTON_BRUSH_MODE:
1236 s = "brush";
1237 break;
1238
1239 case AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE:
1240 s = "airbrush";
1241 break;
1242
1243 case AIPTEK_TOOL_BUTTON_LENS_MODE:
1244 s = "lens";
1245 break;
1246
1247 default:
1248 s = "unknown";
1249 break;
1250 }
1251 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1252 }
1253
1254 static ssize_t
1255 store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1256 {
1257 struct aiptek *aiptek = dev_get_drvdata(dev);
1258 if (aiptek == NULL)
1259 return 0;
1260
1261 if (strcmp(buf, "mouse") == 0) {
1262 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_MOUSE_MODE;
1263 } else if (strcmp(buf, "eraser") == 0) {
1264 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_ERASER_MODE;
1265 } else if (strcmp(buf, "pencil") == 0) {
1266 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_PENCIL_MODE;
1267 } else if (strcmp(buf, "pen") == 0) {
1268 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
1269 } else if (strcmp(buf, "brush") == 0) {
1270 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_BRUSH_MODE;
1271 } else if (strcmp(buf, "airbrush") == 0) {
1272 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE;
1273 } else if (strcmp(buf, "lens") == 0) {
1274 aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_LENS_MODE;
1275 }
1276
1277 return count;
1278 }
1279
1280 static DEVICE_ATTR(tool_mode,
1281 S_IRUGO | S_IWUGO,
1282 show_tabletToolMode, store_tabletToolMode);
1283
1284 /***********************************************************************
1285 * support routines for the 'xtilt' file. Note that this file
1286 * both displays current setting and allows reprogramming.
1287 */
1288 static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf)
1289 {
1290 struct aiptek *aiptek = dev_get_drvdata(dev);
1291
1292 if (aiptek == NULL)
1293 return 0;
1294
1295 if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
1296 return snprintf(buf, PAGE_SIZE, "disable\n");
1297 } else {
1298 return snprintf(buf, PAGE_SIZE, "%d\n",
1299 aiptek->curSetting.xTilt);
1300 }
1301 }
1302
1303 static ssize_t
1304 store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1305 {
1306 struct aiptek *aiptek = dev_get_drvdata(dev);
1307 int x;
1308
1309 if (aiptek == NULL)
1310 return 0;
1311
1312 if (strcmp(buf, "disable") == 0) {
1313 aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
1314 } else {
1315 x = (int)simple_strtol(buf, NULL, 10);
1316 if (x >= AIPTEK_TILT_MIN && x <= AIPTEK_TILT_MAX) {
1317 aiptek->newSetting.xTilt = x;
1318 }
1319 }
1320 return count;
1321 }
1322
1323 static DEVICE_ATTR(xtilt,
1324 S_IRUGO | S_IWUGO, show_tabletXtilt, store_tabletXtilt);
1325
1326 /***********************************************************************
1327 * support routines for the 'ytilt' file. Note that this file
1328 * both displays current setting and allows reprogramming.
1329 */
1330 static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf)
1331 {
1332 struct aiptek *aiptek = dev_get_drvdata(dev);
1333
1334 if (aiptek == NULL)
1335 return 0;
1336
1337 if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
1338 return snprintf(buf, PAGE_SIZE, "disable\n");
1339 } else {
1340 return snprintf(buf, PAGE_SIZE, "%d\n",
1341 aiptek->curSetting.yTilt);
1342 }
1343 }
1344
1345 static ssize_t
1346 store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1347 {
1348 struct aiptek *aiptek = dev_get_drvdata(dev);
1349 int y;
1350
1351 if (aiptek == NULL)
1352 return 0;
1353
1354 if (strcmp(buf, "disable") == 0) {
1355 aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
1356 } else {
1357 y = (int)simple_strtol(buf, NULL, 10);
1358 if (y >= AIPTEK_TILT_MIN && y <= AIPTEK_TILT_MAX) {
1359 aiptek->newSetting.yTilt = y;
1360 }
1361 }
1362 return count;
1363 }
1364
1365 static DEVICE_ATTR(ytilt,
1366 S_IRUGO | S_IWUGO, show_tabletYtilt, store_tabletYtilt);
1367
1368 /***********************************************************************
1369 * support routines for the 'jitter' file. Note that this file
1370 * both displays current setting and allows reprogramming.
1371 */
1372 static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf)
1373 {
1374 struct aiptek *aiptek = dev_get_drvdata(dev);
1375
1376 if (aiptek == NULL)
1377 return 0;
1378
1379 return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay);
1380 }
1381
1382 static ssize_t
1383 store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1384 {
1385 struct aiptek *aiptek = dev_get_drvdata(dev);
1386
1387 if (aiptek == NULL)
1388 return 0;
1389
1390 aiptek->newSetting.jitterDelay = (int)simple_strtol(buf, NULL, 10);
1391 return count;
1392 }
1393
1394 static DEVICE_ATTR(jitter,
1395 S_IRUGO | S_IWUGO,
1396 show_tabletJitterDelay, store_tabletJitterDelay);
1397
1398 /***********************************************************************
1399 * support routines for the 'delay' file. Note that this file
1400 * both displays current setting and allows reprogramming.
1401 */
1402 static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf)
1403 {
1404 struct aiptek *aiptek = dev_get_drvdata(dev);
1405
1406 if (aiptek == NULL)
1407 return 0;
1408
1409 return snprintf(buf, PAGE_SIZE, "%d\n",
1410 aiptek->curSetting.programmableDelay);
1411 }
1412
1413 static ssize_t
1414 store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1415 {
1416 struct aiptek *aiptek = dev_get_drvdata(dev);
1417
1418 if (aiptek == NULL)
1419 return 0;
1420
1421 aiptek->newSetting.programmableDelay = (int)simple_strtol(buf, NULL, 10);
1422 return count;
1423 }
1424
1425 static DEVICE_ATTR(delay,
1426 S_IRUGO | S_IWUGO,
1427 show_tabletProgrammableDelay, store_tabletProgrammableDelay);
1428
1429 /***********************************************************************
1430 * support routines for the 'input_path' file. Note that this file
1431 * only displays current setting.
1432 */
1433 static ssize_t show_tabletInputDevice(struct device *dev, struct device_attribute *attr, char *buf)
1434 {
1435 struct aiptek *aiptek = dev_get_drvdata(dev);
1436
1437 if (aiptek == NULL)
1438 return 0;
1439
1440 return snprintf(buf, PAGE_SIZE, "/dev/input/%s\n",
1441 aiptek->features.inputPath);
1442 }
1443
1444 static DEVICE_ATTR(input_path, S_IRUGO, show_tabletInputDevice, NULL);
1445
1446 /***********************************************************************
1447 * support routines for the 'event_count' file. Note that this file
1448 * only displays current setting.
1449 */
1450 static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf)
1451 {
1452 struct aiptek *aiptek = dev_get_drvdata(dev);
1453
1454 if (aiptek == NULL)
1455 return 0;
1456
1457 return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount);
1458 }
1459
1460 static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL);
1461
1462 /***********************************************************************
1463 * support routines for the 'diagnostic' file. Note that this file
1464 * only displays current setting.
1465 */
1466 static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf)
1467 {
1468 struct aiptek *aiptek = dev_get_drvdata(dev);
1469 char *retMsg;
1470
1471 if (aiptek == NULL)
1472 return 0;
1473
1474 switch (aiptek->diagnostic) {
1475 case AIPTEK_DIAGNOSTIC_NA:
1476 retMsg = "no errors\n";
1477 break;
1478
1479 case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE:
1480 retMsg = "Error: receiving relative reports\n";
1481 break;
1482
1483 case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE:
1484 retMsg = "Error: receiving absolute reports\n";
1485 break;
1486
1487 case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED:
1488 if (aiptek->curSetting.pointerMode ==
1489 AIPTEK_POINTER_ONLY_MOUSE_MODE) {
1490 retMsg = "Error: receiving stylus reports\n";
1491 } else {
1492 retMsg = "Error: receiving mouse reports\n";
1493 }
1494 break;
1495
1496 default:
1497 return 0;
1498 }
1499 return snprintf(buf, PAGE_SIZE, retMsg);
1500 }
1501
1502 static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL);
1503
1504 /***********************************************************************
1505 * support routines for the 'stylus_upper' file. Note that this file
1506 * both displays current setting and allows for setting changing.
1507 */
1508 static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf)
1509 {
1510 struct aiptek *aiptek = dev_get_drvdata(dev);
1511 char *s;
1512
1513 if (aiptek == NULL)
1514 return 0;
1515
1516 switch (aiptek->curSetting.stylusButtonUpper) {
1517 case AIPTEK_STYLUS_UPPER_BUTTON:
1518 s = "upper";
1519 break;
1520
1521 case AIPTEK_STYLUS_LOWER_BUTTON:
1522 s = "lower";
1523 break;
1524
1525 default:
1526 s = "unknown";
1527 break;
1528 }
1529 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1530 }
1531
1532 static ssize_t
1533 store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1534 {
1535 struct aiptek *aiptek = dev_get_drvdata(dev);
1536
1537 if (aiptek == NULL)
1538 return 0;
1539
1540 if (strcmp(buf, "upper") == 0) {
1541 aiptek->newSetting.stylusButtonUpper =
1542 AIPTEK_STYLUS_UPPER_BUTTON;
1543 } else if (strcmp(buf, "lower") == 0) {
1544 aiptek->newSetting.stylusButtonUpper =
1545 AIPTEK_STYLUS_LOWER_BUTTON;
1546 }
1547 return count;
1548 }
1549
1550 static DEVICE_ATTR(stylus_upper,
1551 S_IRUGO | S_IWUGO,
1552 show_tabletStylusUpper, store_tabletStylusUpper);
1553
1554 /***********************************************************************
1555 * support routines for the 'stylus_lower' file. Note that this file
1556 * both displays current setting and allows for setting changing.
1557 */
1558 static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf)
1559 {
1560 struct aiptek *aiptek = dev_get_drvdata(dev);
1561 char *s;
1562
1563 if (aiptek == NULL)
1564 return 0;
1565
1566 switch (aiptek->curSetting.stylusButtonLower) {
1567 case AIPTEK_STYLUS_UPPER_BUTTON:
1568 s = "upper";
1569 break;
1570
1571 case AIPTEK_STYLUS_LOWER_BUTTON:
1572 s = "lower";
1573 break;
1574
1575 default:
1576 s = "unknown";
1577 break;
1578 }
1579 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1580 }
1581
1582 static ssize_t
1583 store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1584 {
1585 struct aiptek *aiptek = dev_get_drvdata(dev);
1586
1587 if (aiptek == NULL)
1588 return 0;
1589
1590 if (strcmp(buf, "upper") == 0) {
1591 aiptek->newSetting.stylusButtonLower =
1592 AIPTEK_STYLUS_UPPER_BUTTON;
1593 } else if (strcmp(buf, "lower") == 0) {
1594 aiptek->newSetting.stylusButtonLower =
1595 AIPTEK_STYLUS_LOWER_BUTTON;
1596 }
1597 return count;
1598 }
1599
1600 static DEVICE_ATTR(stylus_lower,
1601 S_IRUGO | S_IWUGO,
1602 show_tabletStylusLower, store_tabletStylusLower);
1603
1604 /***********************************************************************
1605 * support routines for the 'mouse_left' file. Note that this file
1606 * both displays current setting and allows for setting changing.
1607 */
1608 static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf)
1609 {
1610 struct aiptek *aiptek = dev_get_drvdata(dev);
1611 char *s;
1612
1613 if (aiptek == NULL)
1614 return 0;
1615
1616 switch (aiptek->curSetting.mouseButtonLeft) {
1617 case AIPTEK_MOUSE_LEFT_BUTTON:
1618 s = "left";
1619 break;
1620
1621 case AIPTEK_MOUSE_MIDDLE_BUTTON:
1622 s = "middle";
1623 break;
1624
1625 case AIPTEK_MOUSE_RIGHT_BUTTON:
1626 s = "right";
1627 break;
1628
1629 default:
1630 s = "unknown";
1631 break;
1632 }
1633 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1634 }
1635
1636 static ssize_t
1637 store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1638 {
1639 struct aiptek *aiptek = dev_get_drvdata(dev);
1640
1641 if (aiptek == NULL)
1642 return 0;
1643
1644 if (strcmp(buf, "left") == 0) {
1645 aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
1646 } else if (strcmp(buf, "middle") == 0) {
1647 aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_MIDDLE_BUTTON;
1648 } else if (strcmp(buf, "right") == 0) {
1649 aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_RIGHT_BUTTON;
1650 }
1651 return count;
1652 }
1653
1654 static DEVICE_ATTR(mouse_left,
1655 S_IRUGO | S_IWUGO,
1656 show_tabletMouseLeft, store_tabletMouseLeft);
1657
1658 /***********************************************************************
1659 * support routines for the 'mouse_middle' file. Note that this file
1660 * both displays current setting and allows for setting changing.
1661 */
1662 static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf)
1663 {
1664 struct aiptek *aiptek = dev_get_drvdata(dev);
1665 char *s;
1666
1667 if (aiptek == NULL)
1668 return 0;
1669
1670 switch (aiptek->curSetting.mouseButtonMiddle) {
1671 case AIPTEK_MOUSE_LEFT_BUTTON:
1672 s = "left";
1673 break;
1674
1675 case AIPTEK_MOUSE_MIDDLE_BUTTON:
1676 s = "middle";
1677 break;
1678
1679 case AIPTEK_MOUSE_RIGHT_BUTTON:
1680 s = "right";
1681 break;
1682
1683 default:
1684 s = "unknown";
1685 break;
1686 }
1687 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1688 }
1689
1690 static ssize_t
1691 store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1692 {
1693 struct aiptek *aiptek = dev_get_drvdata(dev);
1694
1695 if (aiptek == NULL)
1696 return 0;
1697
1698 if (strcmp(buf, "left") == 0) {
1699 aiptek->newSetting.mouseButtonMiddle = AIPTEK_MOUSE_LEFT_BUTTON;
1700 } else if (strcmp(buf, "middle") == 0) {
1701 aiptek->newSetting.mouseButtonMiddle =
1702 AIPTEK_MOUSE_MIDDLE_BUTTON;
1703 } else if (strcmp(buf, "right") == 0) {
1704 aiptek->newSetting.mouseButtonMiddle =
1705 AIPTEK_MOUSE_RIGHT_BUTTON;
1706 }
1707 return count;
1708 }
1709
1710 static DEVICE_ATTR(mouse_middle,
1711 S_IRUGO | S_IWUGO,
1712 show_tabletMouseMiddle, store_tabletMouseMiddle);
1713
1714 /***********************************************************************
1715 * support routines for the 'mouse_right' file. Note that this file
1716 * both displays current setting and allows for setting changing.
1717 */
1718 static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf)
1719 {
1720 struct aiptek *aiptek = dev_get_drvdata(dev);
1721 char *s;
1722
1723 if (aiptek == NULL)
1724 return 0;
1725
1726 switch (aiptek->curSetting.mouseButtonRight) {
1727 case AIPTEK_MOUSE_LEFT_BUTTON:
1728 s = "left";
1729 break;
1730
1731 case AIPTEK_MOUSE_MIDDLE_BUTTON:
1732 s = "middle";
1733 break;
1734
1735 case AIPTEK_MOUSE_RIGHT_BUTTON:
1736 s = "right";
1737 break;
1738
1739 default:
1740 s = "unknown";
1741 break;
1742 }
1743 return snprintf(buf, PAGE_SIZE, "%s\n", s);
1744 }
1745
1746 static ssize_t
1747 store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1748 {
1749 struct aiptek *aiptek = dev_get_drvdata(dev);
1750
1751 if (aiptek == NULL)
1752 return 0;
1753
1754 if (strcmp(buf, "left") == 0) {
1755 aiptek->newSetting.mouseButtonRight = AIPTEK_MOUSE_LEFT_BUTTON;
1756 } else if (strcmp(buf, "middle") == 0) {
1757 aiptek->newSetting.mouseButtonRight =
1758 AIPTEK_MOUSE_MIDDLE_BUTTON;
1759 } else if (strcmp(buf, "right") == 0) {
1760 aiptek->newSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
1761 }
1762 return count;
1763 }
1764
1765 static DEVICE_ATTR(mouse_right,
1766 S_IRUGO | S_IWUGO,
1767 show_tabletMouseRight, store_tabletMouseRight);
1768
1769 /***********************************************************************
1770 * support routines for the 'wheel' file. Note that this file
1771 * both displays current setting and allows for setting changing.
1772 */
1773 static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf)
1774 {
1775 struct aiptek *aiptek = dev_get_drvdata(dev);
1776
1777 if (aiptek == NULL)
1778 return 0;
1779
1780 if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
1781 return snprintf(buf, PAGE_SIZE, "disable\n");
1782 } else {
1783 return snprintf(buf, PAGE_SIZE, "%d\n",
1784 aiptek->curSetting.wheel);
1785 }
1786 }
1787
1788 static ssize_t
1789 store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1790 {
1791 struct aiptek *aiptek = dev_get_drvdata(dev);
1792
1793 if (aiptek == NULL)
1794 return 0;
1795
1796 aiptek->newSetting.wheel = (int)simple_strtol(buf, NULL, 10);
1797 return count;
1798 }
1799
1800 static DEVICE_ATTR(wheel,
1801 S_IRUGO | S_IWUGO, show_tabletWheel, store_tabletWheel);
1802
1803 /***********************************************************************
1804 * support routines for the 'execute' file. Note that this file
1805 * both displays current setting and allows for setting changing.
1806 */
1807 static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf)
1808 {
1809 struct aiptek *aiptek = dev_get_drvdata(dev);
1810
1811 if (aiptek == NULL)
1812 return 0;
1813
1814 /* There is nothing useful to display, so a one-line manual
1815 * is in order...
1816 */
1817 return snprintf(buf, PAGE_SIZE,
1818 "Write anything to this file to program your tablet.\n");
1819 }
1820
1821 static ssize_t
1822 store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1823 {
1824 struct aiptek *aiptek = dev_get_drvdata(dev);
1825
1826 if (aiptek == NULL)
1827 return 0;
1828
1829 /* We do not care what you write to this file. Merely the action
1830 * of writing to this file triggers a tablet reprogramming.
1831 */
1832 memcpy(&aiptek->curSetting, &aiptek->newSetting,
1833 sizeof(struct aiptek_settings));
1834
1835 if (aiptek_program_tablet(aiptek) < 0)
1836 return -EIO;
1837
1838 return count;
1839 }
1840
1841 static DEVICE_ATTR(execute,
1842 S_IRUGO | S_IWUGO, show_tabletExecute, store_tabletExecute);
1843
1844 /***********************************************************************
1845 * support routines for the 'odm_code' file. Note that this file
1846 * only displays current setting.
1847 */
1848 static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf)
1849 {
1850 struct aiptek *aiptek = dev_get_drvdata(dev);
1851
1852 if (aiptek == NULL)
1853 return 0;
1854
1855 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode);
1856 }
1857
1858 static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL);
1859
1860 /***********************************************************************
1861 * support routines for the 'model_code' file. Note that this file
1862 * only displays current setting.
1863 */
1864 static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf)
1865 {
1866 struct aiptek *aiptek = dev_get_drvdata(dev);
1867
1868 if (aiptek == NULL)
1869 return 0;
1870
1871 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode);
1872 }
1873
1874 static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL);
1875
1876 /***********************************************************************
1877 * support routines for the 'firmware_code' file. Note that this file
1878 * only displays current setting.
1879 */
1880 static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf)
1881 {
1882 struct aiptek *aiptek = dev_get_drvdata(dev);
1883
1884 if (aiptek == NULL)
1885 return 0;
1886
1887 return snprintf(buf, PAGE_SIZE, "%04x\n",
1888 aiptek->features.firmwareCode);
1889 }
1890
1891 static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
1892
1893 /***********************************************************************
1894 * This routine removes all existing sysfs files managed by this device
1895 * driver.
1896 */
1897 static void aiptek_delete_files(struct device *dev)
1898 {
1899 device_remove_file(dev, &dev_attr_size);
1900 device_remove_file(dev, &dev_attr_product_id);
1901 device_remove_file(dev, &dev_attr_vendor_id);
1902 device_remove_file(dev, &dev_attr_vendor);
1903 device_remove_file(dev, &dev_attr_product);
1904 device_remove_file(dev, &dev_attr_pointer_mode);
1905 device_remove_file(dev, &dev_attr_coordinate_mode);
1906 device_remove_file(dev, &dev_attr_tool_mode);
1907 device_remove_file(dev, &dev_attr_xtilt);
1908 device_remove_file(dev, &dev_attr_ytilt);
1909 device_remove_file(dev, &dev_attr_jitter);
1910 device_remove_file(dev, &dev_attr_delay);
1911 device_remove_file(dev, &dev_attr_input_path);
1912 device_remove_file(dev, &dev_attr_event_count);
1913 device_remove_file(dev, &dev_attr_diagnostic);
1914 device_remove_file(dev, &dev_attr_odm_code);
1915 device_remove_file(dev, &dev_attr_model_code);
1916 device_remove_file(dev, &dev_attr_firmware_code);
1917 device_remove_file(dev, &dev_attr_stylus_lower);
1918 device_remove_file(dev, &dev_attr_stylus_upper);
1919 device_remove_file(dev, &dev_attr_mouse_left);
1920 device_remove_file(dev, &dev_attr_mouse_middle);
1921 device_remove_file(dev, &dev_attr_mouse_right);
1922 device_remove_file(dev, &dev_attr_wheel);
1923 device_remove_file(dev, &dev_attr_execute);
1924 }
1925
1926 /***********************************************************************
1927 * This routine creates the sysfs files managed by this device
1928 * driver.
1929 */
1930 static int aiptek_add_files(struct device *dev)
1931 {
1932 int ret;
1933
1934 if ((ret = device_create_file(dev, &dev_attr_size)) ||
1935 (ret = device_create_file(dev, &dev_attr_product_id)) ||
1936 (ret = device_create_file(dev, &dev_attr_vendor_id)) ||
1937 (ret = device_create_file(dev, &dev_attr_vendor)) ||
1938 (ret = device_create_file(dev, &dev_attr_product)) ||
1939 (ret = device_create_file(dev, &dev_attr_pointer_mode)) ||
1940 (ret = device_create_file(dev, &dev_attr_coordinate_mode)) ||
1941 (ret = device_create_file(dev, &dev_attr_tool_mode)) ||
1942 (ret = device_create_file(dev, &dev_attr_xtilt)) ||
1943 (ret = device_create_file(dev, &dev_attr_ytilt)) ||
1944 (ret = device_create_file(dev, &dev_attr_jitter)) ||
1945 (ret = device_create_file(dev, &dev_attr_delay)) ||
1946 (ret = device_create_file(dev, &dev_attr_input_path)) ||
1947 (ret = device_create_file(dev, &dev_attr_event_count)) ||
1948 (ret = device_create_file(dev, &dev_attr_diagnostic)) ||
1949 (ret = device_create_file(dev, &dev_attr_odm_code)) ||
1950 (ret = device_create_file(dev, &dev_attr_model_code)) ||
1951 (ret = device_create_file(dev, &dev_attr_firmware_code)) ||
1952 (ret = device_create_file(dev, &dev_attr_stylus_lower)) ||
1953 (ret = device_create_file(dev, &dev_attr_stylus_upper)) ||
1954 (ret = device_create_file(dev, &dev_attr_mouse_left)) ||
1955 (ret = device_create_file(dev, &dev_attr_mouse_middle)) ||
1956 (ret = device_create_file(dev, &dev_attr_mouse_right)) ||
1957 (ret = device_create_file(dev, &dev_attr_wheel)) ||
1958 (ret = device_create_file(dev, &dev_attr_execute))) {
1959 err("aiptek: killing own sysfs device files\n");
1960 aiptek_delete_files(dev);
1961 }
1962 return ret;
1963 }
1964
1965 /***********************************************************************
1966 * This routine is called when a tablet has been identified. It basically
1967 * sets up the tablet and the driver's internal structures.
1968 */
1969 static int
1970 aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
1971 {
1972 struct usb_device *usbdev = interface_to_usbdev(intf);
1973 struct usb_endpoint_descriptor *endpoint;
1974 struct aiptek *aiptek;
1975 struct input_dev *inputdev;
1976 struct input_handle *inputhandle;
1977 struct list_head *node, *next;
1978 int i;
1979 int speeds[] = { 0,
1980 AIPTEK_PROGRAMMABLE_DELAY_50,
1981 AIPTEK_PROGRAMMABLE_DELAY_400,
1982 AIPTEK_PROGRAMMABLE_DELAY_25,
1983 AIPTEK_PROGRAMMABLE_DELAY_100,
1984 AIPTEK_PROGRAMMABLE_DELAY_200,
1985 AIPTEK_PROGRAMMABLE_DELAY_300
1986 };
1987
1988 /* programmableDelay is where the command-line specified
1989 * delay is kept. We make it the first element of speeds[],
1990 * so therefore, your override speed is tried first, then the
1991 * remainder. Note that the default value of 400ms will be tried
1992 * if you do not specify any command line parameter.
1993 */
1994 speeds[0] = programmableDelay;
1995
1996 aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL);
1997 inputdev = input_allocate_device();
1998 if (!aiptek || !inputdev)
1999 goto fail1;
2000
2001 aiptek->data = usb_buffer_alloc(usbdev, AIPTEK_PACKET_LENGTH,
2002 SLAB_ATOMIC, &aiptek->data_dma);
2003 if (!aiptek->data)
2004 goto fail1;
2005
2006 aiptek->urb = usb_alloc_urb(0, GFP_KERNEL);
2007 if (!aiptek->urb)
2008 goto fail2;
2009
2010 aiptek->inputdev = inputdev;
2011 aiptek->usbdev = usbdev;
2012 aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber;
2013 aiptek->inDelay = 0;
2014 aiptek->endDelay = 0;
2015 aiptek->previousJitterable = 0;
2016
2017 /* Set up the curSettings struct. Said struct contains the current
2018 * programmable parameters. The newSetting struct contains changes
2019 * the user makes to the settings via the sysfs interface. Those
2020 * changes are not "committed" to curSettings until the user
2021 * writes to the sysfs/.../execute file.
2022 */
2023 aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
2024 aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE;
2025 aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
2026 aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE;
2027 aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE;
2028 aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
2029 aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON;
2030 aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
2031 aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON;
2032 aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON;
2033 aiptek->curSetting.jitterDelay = jitterDelay;
2034 aiptek->curSetting.programmableDelay = programmableDelay;
2035
2036 /* Both structs should have equivalent settings
2037 */
2038 aiptek->newSetting = aiptek->curSetting;
2039
2040 /* Determine the usb devices' physical path.
2041 * Asketh not why we always pretend we're using "../input0",
2042 * but I suspect this will have to be refactored one
2043 * day if a single USB device can be a keyboard & a mouse
2044 * & a tablet, and the inputX number actually will tell
2045 * us something...
2046 */
2047 usb_make_path(usbdev, aiptek->features.usbPath,
2048 sizeof(aiptek->features.usbPath));
2049 strlcat(aiptek->features.usbPath, "/input0",
2050 sizeof(aiptek->features.usbPath));
2051
2052 /* Set up client data, pointers to open and close routines
2053 * for the input device.
2054 */
2055 inputdev->name = "Aiptek";
2056 inputdev->phys = aiptek->features.usbPath;
2057 usb_to_input_id(usbdev, &inputdev->id);
2058 inputdev->cdev.dev = &intf->dev;
2059 inputdev->private = aiptek;
2060 inputdev->open = aiptek_open;
2061 inputdev->close = aiptek_close;
2062
2063 /* Now program the capacities of the tablet, in terms of being
2064 * an input device.
2065 */
2066 inputdev->evbit[0] |= BIT(EV_KEY)
2067 | BIT(EV_ABS)
2068 | BIT(EV_REL)
2069 | BIT(EV_MSC);
2070
2071 inputdev->absbit[0] |= BIT(ABS_MISC);
2072
2073 inputdev->relbit[0] |=
2074 (BIT(REL_X) | BIT(REL_Y) | BIT(REL_WHEEL) | BIT(REL_MISC));
2075
2076 inputdev->keybit[LONG(BTN_LEFT)] |=
2077 (BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE));
2078
2079 inputdev->keybit[LONG(BTN_DIGI)] |=
2080 (BIT(BTN_TOOL_PEN) |
2081 BIT(BTN_TOOL_RUBBER) |
2082 BIT(BTN_TOOL_PENCIL) |
2083 BIT(BTN_TOOL_AIRBRUSH) |
2084 BIT(BTN_TOOL_BRUSH) |
2085 BIT(BTN_TOOL_MOUSE) |
2086 BIT(BTN_TOOL_LENS) |
2087 BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2));
2088
2089 inputdev->mscbit[0] = BIT(MSC_SERIAL);
2090
2091 /* Programming the tablet macro keys needs to be done with a for loop
2092 * as the keycodes are discontiguous.
2093 */
2094 for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i)
2095 set_bit(macroKeyEvents[i], inputdev->keybit);
2096
2097 /*
2098 * Program the input device coordinate capacities. We do not yet
2099 * know what maximum X, Y, and Z values are, so we're putting fake
2100 * values in. Later, we'll ask the tablet to put in the correct
2101 * values.
2102 */
2103 input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0);
2104 input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0);
2105 input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0);
2106 input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
2107 input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
2108 input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
2109
2110 endpoint = &intf->altsetting[0].endpoint[0].desc;
2111
2112 /* Go set up our URB, which is called when the tablet receives
2113 * input.
2114 */
2115 usb_fill_int_urb(aiptek->urb,
2116 aiptek->usbdev,
2117 usb_rcvintpipe(aiptek->usbdev,
2118 endpoint->bEndpointAddress),
2119 aiptek->data, 8, aiptek_irq, aiptek,
2120 endpoint->bInterval);
2121
2122 aiptek->urb->transfer_dma = aiptek->data_dma;
2123 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
2124
2125 /* Program the tablet. This sets the tablet up in the mode
2126 * specified in newSetting, and also queries the tablet's
2127 * physical capacities.
2128 *
2129 * Sanity check: if a tablet doesn't like the slow programmatic
2130 * delay, we often get sizes of 0x0. Let's use that as an indicator
2131 * to try faster delays, up to 25 ms. If that logic fails, well, you'll
2132 * have to explain to us how your tablet thinks it's 0x0, and yet that's
2133 * not an error :-)
2134 */
2135
2136 for (i = 0; i < ARRAY_SIZE(speeds); ++i) {
2137 aiptek->curSetting.programmableDelay = speeds[i];
2138 (void)aiptek_program_tablet(aiptek);
2139 if (aiptek->inputdev->absmax[ABS_X] > 0) {
2140 info("input: Aiptek using %d ms programming speed\n",
2141 aiptek->curSetting.programmableDelay);
2142 break;
2143 }
2144 }
2145
2146 /* Register the tablet as an Input Device
2147 */
2148 input_register_device(aiptek->inputdev);
2149
2150 /* We now will look for the evdev device which is mapped to
2151 * the tablet. The partial name is kept in the link list of
2152 * input_handles associated with this input device.
2153 * What identifies an evdev input_handler is that it begins
2154 * with 'event', continues with a digit, and that in turn
2155 * is mapped to input/eventN.
2156 */
2157 list_for_each_safe(node, next, &inputdev->h_list) {
2158 inputhandle = to_handle(node);
2159 if (strncmp(inputhandle->name, "event", 5) == 0) {
2160 strcpy(aiptek->features.inputPath, inputhandle->name);
2161 break;
2162 }
2163 }
2164
2165 /* Associate this driver's struct with the usb interface.
2166 */
2167 usb_set_intfdata(intf, aiptek);
2168
2169 /* Set up the sysfs files
2170 */
2171 aiptek_add_files(&intf->dev);
2172
2173 /* Make sure the evdev module is loaded. Assuming evdev IS a module :-)
2174 */
2175 if (request_module("evdev") != 0)
2176 info("aiptek: error loading 'evdev' module");
2177
2178 return 0;
2179
2180 fail2: usb_buffer_free(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
2181 aiptek->data_dma);
2182 fail1: input_free_device(inputdev);
2183 kfree(aiptek);
2184 return -ENOMEM;
2185 }
2186
2187 /* Forward declaration */
2188 static void aiptek_disconnect(struct usb_interface *intf);
2189
2190 static struct usb_driver aiptek_driver = {
2191 .name = "aiptek",
2192 .probe = aiptek_probe,
2193 .disconnect = aiptek_disconnect,
2194 .id_table = aiptek_ids,
2195 };
2196
2197 /***********************************************************************
2198 * Deal with tablet disconnecting from the system.
2199 */
2200 static void aiptek_disconnect(struct usb_interface *intf)
2201 {
2202 struct aiptek *aiptek = usb_get_intfdata(intf);
2203
2204 /* Disassociate driver's struct with usb interface
2205 */
2206 usb_set_intfdata(intf, NULL);
2207 if (aiptek != NULL) {
2208 /* Free & unhook everything from the system.
2209 */
2210 usb_kill_urb(aiptek->urb);
2211 input_unregister_device(aiptek->inputdev);
2212 aiptek_delete_files(&intf->dev);
2213 usb_free_urb(aiptek->urb);
2214 usb_buffer_free(interface_to_usbdev(intf),
2215 AIPTEK_PACKET_LENGTH,
2216 aiptek->data, aiptek->data_dma);
2217 kfree(aiptek);
2218 }
2219 }
2220
2221 static int __init aiptek_init(void)
2222 {
2223 int result = usb_register(&aiptek_driver);
2224 if (result == 0) {
2225 info(DRIVER_VERSION ": " DRIVER_AUTHOR);
2226 info(DRIVER_DESC);
2227 }
2228 return result;
2229 }
2230
2231 static void __exit aiptek_exit(void)
2232 {
2233 usb_deregister(&aiptek_driver);
2234 }
2235
2236 MODULE_AUTHOR(DRIVER_AUTHOR);
2237 MODULE_DESCRIPTION(DRIVER_DESC);
2238 MODULE_LICENSE("GPL");
2239
2240 module_param(programmableDelay, int, 0);
2241 MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming");
2242 module_param(jitterDelay, int, 0);
2243 MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay");
2244
2245 module_init(aiptek_init);
2246 module_exit(aiptek_exit);
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