2 * Native support for the Aiptek HyperPen USB Tablets
3 * (4000U/5000U/6000U/8000U/12000U)
5 * Copyright (c) 2001 Chris Atenasio <chris@crud.net>
6 * Copyright (c) 2002-2004 Bryan W. Headley <bwheadley@earthlink.net>
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>
16 * Many thanks to Oliver Kuechemann for his support.
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
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.
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
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.
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.
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.
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
73 #include <linux/jiffies.h>
74 #include <linux/kernel.h>
75 #include <linux/slab.h>
76 #include <linux/module.h>
77 #include <linux/init.h>
78 #include <linux/usb/input.h>
79 #include <asm/uaccess.h>
80 #include <asm/unaligned.h>
85 #define DRIVER_VERSION "v1.5 (May-15-2004)"
86 #define DRIVER_AUTHOR "Bryan W. Headley/Chris Atenasio"
87 #define DRIVER_DESC "Aiptek HyperPen USB Tablet Driver (Linux 2.6.x)"
90 * Aiptek status packet:
92 * (returned as Report 1 - relative coordinates from mouse and stylus)
94 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
95 * byte0 0 0 0 0 0 0 0 1
96 * byte1 0 0 0 0 0 BS2 BS Tip
97 * byte2 X7 X6 X5 X4 X3 X2 X1 X0
98 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
100 * (returned as Report 2 - absolute coordinates from the stylus)
102 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
103 * byte0 0 0 0 0 0 0 1 0
104 * byte1 X7 X6 X5 X4 X3 X2 X1 X0
105 * byte2 X15 X14 X13 X12 X11 X10 X9 X8
106 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
107 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
108 * byte5 * * * BS2 BS1 Tip IR DV
109 * byte6 P7 P6 P5 P4 P3 P2 P1 P0
110 * byte7 P15 P14 P13 P12 P11 P10 P9 P8
112 * (returned as Report 3 - absolute coordinates from the mouse)
114 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
115 * byte0 0 0 0 0 0 0 1 1
116 * byte1 X7 X6 X5 X4 X3 X2 X1 X0
117 * byte2 X15 X14 X13 X12 X11 X10 X9 X8
118 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
119 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
120 * byte5 * * * BS2 BS1 Tip IR DV
121 * byte6 P7 P6 P5 P4 P3 P2 P1 P0
122 * byte7 P15 P14 P13 P12 P11 P10 P9 P8
124 * (returned as Report 4 - macrokeys from the stylus)
126 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
127 * byte0 0 0 0 0 0 1 0 0
128 * byte1 0 0 0 BS2 BS Tip IR DV
129 * byte2 0 0 0 0 0 0 1 0
130 * byte3 0 0 0 K4 K3 K2 K1 K0
131 * byte4 P7 P6 P5 P4 P3 P2 P1 P0
132 * byte5 P15 P14 P13 P12 P11 P10 P9 P8
134 * (returned as Report 5 - macrokeys from the mouse)
136 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
137 * byte0 0 0 0 0 0 1 0 1
138 * byte1 0 0 0 BS2 BS Tip IR DV
139 * byte2 0 0 0 0 0 0 1 0
140 * byte3 0 0 0 K4 K3 K2 K1 K0
141 * byte4 P7 P6 P5 P4 P3 P2 P1 P0
142 * byte5 P15 P14 P13 P12 P11 P10 P9 P8
144 * IR: In Range = Proximity on
146 * BS = Barrel Switch (as in, macro keys)
147 * BS2 also referred to as Tablet Pick
151 * Use report_type CONTROL (3)
154 * Command/Data Description Return Bytes Return Value
155 * 0x10/0x00 SwitchToMouse 0
156 * 0x10/0x01 SwitchToTablet 0
157 * 0x18/0x04 SetResolution 0
158 * 0x12/0xFF AutoGainOn 0
159 * 0x17/0x00 FilterOn 0
160 * 0x01/0x00 GetXExtension 2 MaxX
161 * 0x01/0x01 GetYExtension 2 MaxY
162 * 0x02/0x00 GetModelCode 2 ModelCode = LOBYTE
163 * 0x03/0x00 GetODMCode 2 ODMCode
164 * 0x08/0x00 GetPressureLevels 2 =512
165 * 0x04/0x00 GetFirmwareVersion 2 Firmware Version
166 * 0x11/0x02 EnableMacroKeys 0
168 * To initialize the tablet:
170 * (1) Send Resolution500LPI (Command)
171 * (2) Query for Model code (Option Report)
172 * (3) Query for ODM code (Option Report)
173 * (4) Query for firmware (Option Report)
174 * (5) Query for GetXExtension (Option Report)
175 * (6) Query for GetYExtension (Option Report)
176 * (7) Query for GetPressureLevels (Option Report)
177 * (8) SwitchToTablet for Absolute coordinates, or
178 * SwitchToMouse for Relative coordinates (Command)
179 * (9) EnableMacroKeys (Command)
180 * (10) FilterOn (Command)
181 * (11) AutoGainOn (Command)
183 * (Step 9 can be omitted, but you'll then have no function keys.)
186 #define USB_VENDOR_ID_AIPTEK 0x08ca
187 #define USB_REQ_GET_REPORT 0x01
188 #define USB_REQ_SET_REPORT 0x09
192 #define AIPTEK_POINTER_ONLY_MOUSE_MODE 0
193 #define AIPTEK_POINTER_ONLY_STYLUS_MODE 1
194 #define AIPTEK_POINTER_EITHER_MODE 2
196 #define AIPTEK_POINTER_ALLOW_MOUSE_MODE(a) \
197 (a == AIPTEK_POINTER_ONLY_MOUSE_MODE || \
198 a == AIPTEK_POINTER_EITHER_MODE)
199 #define AIPTEK_POINTER_ALLOW_STYLUS_MODE(a) \
200 (a == AIPTEK_POINTER_ONLY_STYLUS_MODE || \
201 a == AIPTEK_POINTER_EITHER_MODE)
203 /* CoordinateMode code
205 #define AIPTEK_COORDINATE_RELATIVE_MODE 0
206 #define AIPTEK_COORDINATE_ABSOLUTE_MODE 1
208 /* XTilt and YTilt values
210 #define AIPTEK_TILT_MIN (-128)
211 #define AIPTEK_TILT_MAX 127
212 #define AIPTEK_TILT_DISABLE (-10101)
216 #define AIPTEK_WHEEL_MIN 0
217 #define AIPTEK_WHEEL_MAX 1024
218 #define AIPTEK_WHEEL_DISABLE (-10101)
220 /* ToolCode values, which BTW are 0x140 .. 0x14f
221 * We have things set up such that if the tool button has changed,
222 * the tools get reset.
226 #define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN
227 #define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN
228 #define AIPTEK_TOOL_BUTTON_PENCIL_MODE BTN_TOOL_PENCIL
229 #define AIPTEK_TOOL_BUTTON_BRUSH_MODE BTN_TOOL_BRUSH
230 #define AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE BTN_TOOL_AIRBRUSH
231 #define AIPTEK_TOOL_BUTTON_ERASER_MODE BTN_TOOL_RUBBER
232 #define AIPTEK_TOOL_BUTTON_MOUSE_MODE BTN_TOOL_MOUSE
233 #define AIPTEK_TOOL_BUTTON_LENS_MODE BTN_TOOL_LENS
235 /* Diagnostic message codes
237 #define AIPTEK_DIAGNOSTIC_NA 0
238 #define AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE 1
239 #define AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE 2
240 #define AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED 3
242 /* Time to wait (in ms) to help mask hand jittering
243 * when pressing the stylus buttons.
245 #define AIPTEK_JITTER_DELAY_DEFAULT 50
247 /* Time to wait (in ms) in-between sending the tablet
248 * a command and beginning the process of reading the return
249 * sequence from the tablet.
251 #define AIPTEK_PROGRAMMABLE_DELAY_25 25
252 #define AIPTEK_PROGRAMMABLE_DELAY_50 50
253 #define AIPTEK_PROGRAMMABLE_DELAY_100 100
254 #define AIPTEK_PROGRAMMABLE_DELAY_200 200
255 #define AIPTEK_PROGRAMMABLE_DELAY_300 300
256 #define AIPTEK_PROGRAMMABLE_DELAY_400 400
257 #define AIPTEK_PROGRAMMABLE_DELAY_DEFAULT AIPTEK_PROGRAMMABLE_DELAY_400
259 /* Mouse button programming
261 #define AIPTEK_MOUSE_LEFT_BUTTON 0x04
262 #define AIPTEK_MOUSE_RIGHT_BUTTON 0x08
263 #define AIPTEK_MOUSE_MIDDLE_BUTTON 0x10
265 /* Stylus button programming
267 #define AIPTEK_STYLUS_LOWER_BUTTON 0x08
268 #define AIPTEK_STYLUS_UPPER_BUTTON 0x10
270 /* Length of incoming packet from the tablet
272 #define AIPTEK_PACKET_LENGTH 8
274 /* We report in EV_MISC both the proximity and
275 * whether the report came from the stylus, tablet mouse
276 * or "unknown" -- Unknown when the tablet is in relative
277 * mode, because we only get report 1's.
279 #define AIPTEK_REPORT_TOOL_UNKNOWN 0x10
280 #define AIPTEK_REPORT_TOOL_STYLUS 0x20
281 #define AIPTEK_REPORT_TOOL_MOUSE 0x40
283 static int programmableDelay = AIPTEK_PROGRAMMABLE_DELAY_DEFAULT;
284 static int jitterDelay = AIPTEK_JITTER_DELAY_DEFAULT;
286 struct aiptek_features {
287 int odmCode; /* Tablet manufacturer code */
288 int modelCode; /* Tablet model code (not unique) */
289 int firmwareCode; /* prom/eeprom version */
290 char usbPath[64 + 1]; /* device's physical usb path */
293 struct aiptek_settings {
294 int pointerMode; /* stylus-, mouse-only or either */
295 int coordinateMode; /* absolute/relative coords */
296 int toolMode; /* pen, pencil, brush, etc. tool */
297 int xTilt; /* synthetic xTilt amount */
298 int yTilt; /* synthetic yTilt amount */
299 int wheel; /* synthetic wheel amount */
300 int stylusButtonUpper; /* stylus upper btn delivers... */
301 int stylusButtonLower; /* stylus lower btn delivers... */
302 int mouseButtonLeft; /* mouse left btn delivers... */
303 int mouseButtonMiddle; /* mouse middle btn delivers... */
304 int mouseButtonRight; /* mouse right btn delivers... */
305 int programmableDelay; /* delay for tablet programming */
306 int jitterDelay; /* delay for hand jittering */
310 struct input_dev *inputdev; /* input device struct */
311 struct usb_device *usbdev; /* usb device struct */
312 struct urb *urb; /* urb for incoming reports */
313 dma_addr_t data_dma; /* our dma stuffage */
314 struct aiptek_features features; /* tablet's array of features */
315 struct aiptek_settings curSetting; /* tablet's current programmable */
316 struct aiptek_settings newSetting; /* ... and new param settings */
317 unsigned int ifnum; /* interface number for IO */
318 int diagnostic; /* tablet diagnostic codes */
319 unsigned long eventCount; /* event count */
320 int inDelay; /* jitter: in jitter delay? */
321 unsigned long endDelay; /* jitter: time when delay ends */
322 int previousJitterable; /* jitterable prev value */
324 int lastMacro; /* macro key to reset */
325 int previousToolMode; /* pen, pencil, brush, etc. tool */
326 unsigned char *data; /* incoming packet data */
329 static const int eventTypes[] = {
330 EV_KEY, EV_ABS, EV_REL, EV_MSC,
333 static const int absEvents[] = {
334 ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y,
338 static const int relEvents[] = {
339 REL_X, REL_Y, REL_WHEEL,
342 static const int buttonEvents[] = {
343 BTN_LEFT, BTN_RIGHT, BTN_MIDDLE,
344 BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_PENCIL, BTN_TOOL_AIRBRUSH,
345 BTN_TOOL_BRUSH, BTN_TOOL_MOUSE, BTN_TOOL_LENS, BTN_TOUCH,
346 BTN_STYLUS, BTN_STYLUS2,
350 * Permit easy lookup of keyboard events to send, versus
351 * the bitmap which comes from the tablet. This hides the
352 * issue that the F_keys are not sequentially numbered.
354 static const int macroKeyEvents[] = {
355 KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5,
356 KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11,
357 KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17,
358 KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23,
359 KEY_F24, KEY_STOP, KEY_AGAIN, KEY_PROPS, KEY_UNDO,
360 KEY_FRONT, KEY_COPY, KEY_OPEN, KEY_PASTE, 0
363 /***********************************************************************
364 * Map values to strings and back. Every map shoudl have the following
365 * as its last element: { NULL, AIPTEK_INVALID_VALUE }.
367 #define AIPTEK_INVALID_VALUE -1
374 static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t count)
376 const struct aiptek_map *p;
378 for (p = map; p->string; p++)
379 if (!strncmp(str, p->string, count))
382 return AIPTEK_INVALID_VALUE;
385 static const char *map_val_to_str(const struct aiptek_map *map, int val)
387 const struct aiptek_map *p;
389 for (p = map; p->value != AIPTEK_INVALID_VALUE; p++)
396 /***********************************************************************
397 * aiptek_irq can receive one of six potential reports.
398 * The documentation for each is in the body of the function.
400 * The tablet reports on several attributes per invocation of
401 * aiptek_irq. Because the Linux Input Event system allows the
402 * transmission of ONE attribute per input_report_xxx() call,
403 * collation has to be done on the other end to reconstitute
404 * a complete tablet report. Further, the number of Input Event reports
405 * submitted varies, depending on what USB report type, and circumstance.
406 * To deal with this, EV_MSC is used to indicate an 'end-of-report'
407 * message. This has been an undocumented convention understood by the kernel
408 * tablet driver and clients such as gpm and XFree86's tablet drivers.
410 * Of the information received from the tablet, the one piece I
411 * cannot transmit is the proximity bit (without resorting to an EV_MSC
412 * convention above.) I therefore have taken over REL_MISC and ABS_MISC
413 * (for relative and absolute reports, respectively) for communicating
414 * Proximity. Why two events? I thought it interesting to know if the
415 * Proximity event occurred while the tablet was in absolute or relative
417 * Update: REL_MISC proved not to be such a good idea. With REL_MISC you
418 * get an event transmitted each time. ABS_MISC works better, since it
419 * can be set and re-set. Thus, only using ABS_MISC from now on.
421 * Other tablets use the notion of a certain minimum stylus pressure
422 * to infer proximity. While that could have been done, that is yet
423 * another 'by convention' behavior, the documentation for which
424 * would be spread between two (or more) pieces of software.
426 * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and
427 * replaced with the input_sync() method (which emits EV_SYN.)
430 static void aiptek_irq(struct urb *urb)
432 struct aiptek *aiptek = urb->context;
433 unsigned char *data = aiptek->data;
434 struct input_dev *inputdev = aiptek->inputdev;
436 int retval, macro, x, y, z, left, right, middle, p, dv, tip, bs, pck;
438 switch (urb->status) {
446 /* This urb is terminated, clean up */
447 dbg("%s - urb shutting down with status: %d",
448 __FUNCTION__, urb->status);
452 dbg("%s - nonzero urb status received: %d",
453 __FUNCTION__, urb->status);
457 /* See if we are in a delay loop -- throw out report if true.
459 if (aiptek->inDelay == 1 && time_after(aiptek->endDelay, jiffies)) {
464 aiptek->eventCount++;
466 /* Report 1 delivers relative coordinates with either a stylus
467 * or the mouse. You do not know, however, which input
468 * tool generated the event.
471 if (aiptek->curSetting.coordinateMode ==
472 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
474 AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE;
476 x = (signed char) data[2];
477 y = (signed char) data[3];
479 /* jitterable keeps track of whether any button has been pressed.
480 * We're also using it to remap the physical mouse button mask
481 * to pseudo-settings. (We don't specifically care about it's
482 * value after moving/transposing mouse button bitmasks, except
483 * that a non-zero value indicates that one or more
484 * mouse button was pressed.)
486 jitterable = data[1] & 0x07;
488 left = (data[1] & aiptek->curSetting.mouseButtonLeft >> 2) != 0 ? 1 : 0;
489 right = (data[1] & aiptek->curSetting.mouseButtonRight >> 2) != 0 ? 1 : 0;
490 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle >> 2) != 0 ? 1 : 0;
492 input_report_key(inputdev, BTN_LEFT, left);
493 input_report_key(inputdev, BTN_MIDDLE, middle);
494 input_report_key(inputdev, BTN_RIGHT, right);
496 input_report_abs(inputdev, ABS_MISC,
497 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
498 input_report_rel(inputdev, REL_X, x);
499 input_report_rel(inputdev, REL_Y, y);
501 /* Wheel support is in the form of a single-event
504 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
505 input_report_rel(inputdev, REL_WHEEL,
506 aiptek->curSetting.wheel);
507 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
509 input_sync(inputdev);
512 /* Report 2 is delivered only by the stylus, and delivers
513 * absolute coordinates.
515 else if (data[0] == 2) {
516 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
517 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
518 } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE
519 (aiptek->curSetting.pointerMode)) {
520 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
522 x = le16_to_cpu(get_unaligned((__le16 *) (data + 1)));
523 y = le16_to_cpu(get_unaligned((__le16 *) (data + 3)));
524 z = le16_to_cpu(get_unaligned((__le16 *) (data + 6)));
526 dv = (data[5] & 0x01) != 0 ? 1 : 0;
527 p = (data[5] & 0x02) != 0 ? 1 : 0;
528 tip = (data[5] & 0x04) != 0 ? 1 : 0;
530 /* Use jitterable to re-arrange button masks
532 jitterable = data[5] & 0x18;
534 bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
535 pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
537 /* dv indicates 'data valid' (e.g., the tablet is in sync
538 * and has delivered a "correct" report) We will ignore
539 * all 'bad' reports...
542 /* If the selected tool changed, reset the old
543 * tool key, and set the new one.
545 if (aiptek->previousToolMode !=
546 aiptek->curSetting.toolMode) {
547 input_report_key(inputdev,
548 aiptek->previousToolMode, 0);
549 input_report_key(inputdev,
550 aiptek->curSetting.toolMode,
552 aiptek->previousToolMode =
553 aiptek->curSetting.toolMode;
557 input_report_abs(inputdev, ABS_X, x);
558 input_report_abs(inputdev, ABS_Y, y);
559 input_report_abs(inputdev, ABS_PRESSURE, z);
561 input_report_key(inputdev, BTN_TOUCH, tip);
562 input_report_key(inputdev, BTN_STYLUS, bs);
563 input_report_key(inputdev, BTN_STYLUS2, pck);
565 if (aiptek->curSetting.xTilt !=
566 AIPTEK_TILT_DISABLE) {
567 input_report_abs(inputdev,
569 aiptek->curSetting.xTilt);
571 if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) {
572 input_report_abs(inputdev,
574 aiptek->curSetting.yTilt);
577 /* Wheel support is in the form of a single-event
580 if (aiptek->curSetting.wheel !=
581 AIPTEK_WHEEL_DISABLE) {
582 input_report_abs(inputdev,
584 aiptek->curSetting.wheel);
585 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
588 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS);
589 input_sync(inputdev);
593 /* Report 3's come from the mouse in absolute mode.
595 else if (data[0] == 3) {
596 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
597 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
598 } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE
599 (aiptek->curSetting.pointerMode)) {
600 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
602 x = le16_to_cpu(get_unaligned((__le16 *) (data + 1)));
603 y = le16_to_cpu(get_unaligned((__le16 *) (data + 3)));
605 jitterable = data[5] & 0x1c;
607 dv = (data[5] & 0x01) != 0 ? 1 : 0;
608 p = (data[5] & 0x02) != 0 ? 1 : 0;
609 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
610 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
611 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
614 /* If the selected tool changed, reset the old
615 * tool key, and set the new one.
617 if (aiptek->previousToolMode !=
618 aiptek->curSetting.toolMode) {
619 input_report_key(inputdev,
620 aiptek->previousToolMode, 0);
621 input_report_key(inputdev,
622 aiptek->curSetting.toolMode,
624 aiptek->previousToolMode =
625 aiptek->curSetting.toolMode;
629 input_report_abs(inputdev, ABS_X, x);
630 input_report_abs(inputdev, ABS_Y, y);
632 input_report_key(inputdev, BTN_LEFT, left);
633 input_report_key(inputdev, BTN_MIDDLE, middle);
634 input_report_key(inputdev, BTN_RIGHT, right);
636 /* Wheel support is in the form of a single-event
639 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
640 input_report_abs(inputdev,
642 aiptek->curSetting.wheel);
643 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
646 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_MOUSE);
647 input_sync(inputdev);
651 /* Report 4s come from the macro keys when pressed by stylus
653 else if (data[0] == 4) {
654 jitterable = data[1] & 0x18;
656 dv = (data[1] & 0x01) != 0 ? 1 : 0;
657 p = (data[1] & 0x02) != 0 ? 1 : 0;
658 tip = (data[1] & 0x04) != 0 ? 1 : 0;
659 bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
660 pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
663 z = le16_to_cpu(get_unaligned((__le16 *) (data + 4)));
666 /* If the selected tool changed, reset the old
667 * tool key, and set the new one.
669 if (aiptek->previousToolMode !=
670 aiptek->curSetting.toolMode) {
671 input_report_key(inputdev,
672 aiptek->previousToolMode, 0);
673 input_report_key(inputdev,
674 aiptek->curSetting.toolMode,
676 aiptek->previousToolMode =
677 aiptek->curSetting.toolMode;
681 input_report_key(inputdev, BTN_TOUCH, tip);
682 input_report_key(inputdev, BTN_STYLUS, bs);
683 input_report_key(inputdev, BTN_STYLUS2, pck);
684 input_report_abs(inputdev, ABS_PRESSURE, z);
687 /* For safety, we're sending key 'break' codes for the
688 * neighboring macro keys.
691 input_report_key(inputdev,
692 macroKeyEvents[macro - 1], 0);
695 input_report_key(inputdev,
696 macroKeyEvents[macro + 1], 0);
698 input_report_key(inputdev, macroKeyEvents[macro], p);
699 input_report_abs(inputdev, ABS_MISC,
700 p | AIPTEK_REPORT_TOOL_STYLUS);
701 input_sync(inputdev);
704 /* Report 5s come from the macro keys when pressed by mouse
706 else if (data[0] == 5) {
707 jitterable = data[1] & 0x1c;
709 dv = (data[1] & 0x01) != 0 ? 1 : 0;
710 p = (data[1] & 0x02) != 0 ? 1 : 0;
711 left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
712 right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
713 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
717 /* If the selected tool changed, reset the old
718 * tool key, and set the new one.
720 if (aiptek->previousToolMode !=
721 aiptek->curSetting.toolMode) {
722 input_report_key(inputdev,
723 aiptek->previousToolMode, 0);
724 input_report_key(inputdev,
725 aiptek->curSetting.toolMode,
727 aiptek->previousToolMode =
728 aiptek->curSetting.toolMode;
732 input_report_key(inputdev, BTN_LEFT, left);
733 input_report_key(inputdev, BTN_MIDDLE, middle);
734 input_report_key(inputdev, BTN_RIGHT, right);
737 /* For safety, we're sending key 'break' codes for the
738 * neighboring macro keys.
741 input_report_key(inputdev,
742 macroKeyEvents[macro - 1], 0);
745 input_report_key(inputdev,
746 macroKeyEvents[macro + 1], 0);
749 input_report_key(inputdev, macroKeyEvents[macro], 1);
750 input_report_rel(inputdev, ABS_MISC,
751 p | AIPTEK_REPORT_TOOL_MOUSE);
752 input_sync(inputdev);
755 /* We have no idea which tool can generate a report 6. Theoretically,
756 * neither need to, having been given reports 4 & 5 for such use.
757 * However, report 6 is the 'official-looking' report for macroKeys;
758 * reports 4 & 5 supposively are used to support unnamed, unknown
759 * hat switches (which just so happen to be the macroKeys.)
761 else if (data[0] == 6) {
762 macro = le16_to_cpu(get_unaligned((__le16 *) (data + 1)));
764 input_report_key(inputdev, macroKeyEvents[macro - 1],
768 input_report_key(inputdev, macroKeyEvents[macro + 1],
772 /* If the selected tool changed, reset the old
773 tool key, and set the new one.
775 if (aiptek->previousToolMode !=
776 aiptek->curSetting.toolMode) {
777 input_report_key(inputdev,
778 aiptek->previousToolMode, 0);
779 input_report_key(inputdev,
780 aiptek->curSetting.toolMode,
782 aiptek->previousToolMode =
783 aiptek->curSetting.toolMode;
786 input_report_key(inputdev, macroKeyEvents[macro], 1);
787 input_report_abs(inputdev, ABS_MISC,
788 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
789 input_sync(inputdev);
791 dbg("Unknown report %d", data[0]);
794 /* Jitter may occur when the user presses a button on the stlyus
795 * or the mouse. What we do to prevent that is wait 'x' milliseconds
796 * following a 'jitterable' event, which should give the hand some time
799 * We just introduced aiptek->previousJitterable to carry forth the
800 * notion that jitter occurs when the button state changes from on to off:
801 * a person drawing, holding a button down is not subject to jittering.
802 * With that in mind, changing from upper button depressed to lower button
803 * WILL transition through a jitter delay.
806 if (aiptek->previousJitterable != jitterable &&
807 aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) {
808 aiptek->endDelay = jiffies +
809 ((aiptek->curSetting.jitterDelay * HZ) / 1000);
812 aiptek->previousJitterable = jitterable;
815 retval = usb_submit_urb(urb, GFP_ATOMIC);
817 err("%s - usb_submit_urb failed with result %d",
818 __FUNCTION__, retval);
822 /***********************************************************************
823 * These are the USB id's known so far. We do not identify them to
824 * specific Aiptek model numbers, because there has been overlaps,
825 * use, and reuse of id's in existing models. Certain models have
826 * been known to use more than one ID, indicative perhaps of
827 * manufacturing revisions. In any event, we consider these
828 * IDs to not be model-specific nor unique.
830 static const struct usb_device_id aiptek_ids[] = {
831 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)},
832 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)},
833 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)},
834 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)},
835 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)},
836 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)},
837 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)},
841 MODULE_DEVICE_TABLE(usb, aiptek_ids);
843 /***********************************************************************
844 * Open an instance of the tablet driver.
846 static int aiptek_open(struct input_dev *inputdev)
848 struct aiptek *aiptek = input_get_drvdata(inputdev);
850 aiptek->urb->dev = aiptek->usbdev;
851 if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0)
857 /***********************************************************************
858 * Close an instance of the tablet driver.
860 static void aiptek_close(struct input_dev *inputdev)
862 struct aiptek *aiptek = input_get_drvdata(inputdev);
864 usb_kill_urb(aiptek->urb);
867 /***********************************************************************
868 * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x,
869 * where they were known as usb_set_report and usb_get_report.
872 aiptek_set_report(struct aiptek *aiptek,
873 unsigned char report_type,
874 unsigned char report_id, void *buffer, int size)
876 return usb_control_msg(aiptek->usbdev,
877 usb_sndctrlpipe(aiptek->usbdev, 0),
879 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
880 USB_DIR_OUT, (report_type << 8) + report_id,
881 aiptek->ifnum, buffer, size, 5000);
885 aiptek_get_report(struct aiptek *aiptek,
886 unsigned char report_type,
887 unsigned char report_id, void *buffer, int size)
889 return usb_control_msg(aiptek->usbdev,
890 usb_rcvctrlpipe(aiptek->usbdev, 0),
892 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
893 USB_DIR_IN, (report_type << 8) + report_id,
894 aiptek->ifnum, buffer, size, 5000);
897 /***********************************************************************
898 * Send a command to the tablet.
901 aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data)
903 const int sizeof_buf = 3 * sizeof(u8);
907 buf = kmalloc(sizeof_buf, GFP_KERNEL);
916 aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
917 dbg("aiptek_program: failed, tried to send: 0x%02x 0x%02x",
921 return ret < 0 ? ret : 0;
924 /***********************************************************************
925 * Retrieve information from the tablet. Querying info is defined as first
926 * sending the {command,data} sequence as a command, followed by a wait
927 * (aka, "programmaticDelay") and then a "read" request.
930 aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data)
932 const int sizeof_buf = 3 * sizeof(u8);
936 buf = kmalloc(sizeof_buf, GFP_KERNEL);
944 if (aiptek_command(aiptek, command, data) != 0) {
948 msleep(aiptek->curSetting.programmableDelay);
951 aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
952 dbg("aiptek_query failed: returned 0x%02x 0x%02x 0x%02x",
953 buf[0], buf[1], buf[2]);
956 ret = le16_to_cpu(get_unaligned((__le16 *) (buf + 1)));
962 /***********************************************************************
963 * Program the tablet into either absolute or relative mode.
964 * We also get information about the tablet's size.
966 static int aiptek_program_tablet(struct aiptek *aiptek)
969 /* Execute Resolution500LPI */
970 if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0)
973 /* Query getModelCode */
974 if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0)
976 aiptek->features.modelCode = ret & 0xff;
978 /* Query getODMCode */
979 if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0)
981 aiptek->features.odmCode = ret;
983 /* Query getFirmwareCode */
984 if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0)
986 aiptek->features.firmwareCode = ret;
988 /* Query getXextension */
989 if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0)
991 aiptek->inputdev->absmin[ABS_X] = 0;
992 aiptek->inputdev->absmax[ABS_X] = ret - 1;
994 /* Query getYextension */
995 if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0)
997 aiptek->inputdev->absmin[ABS_Y] = 0;
998 aiptek->inputdev->absmax[ABS_Y] = ret - 1;
1000 /* Query getPressureLevels */
1001 if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0)
1003 aiptek->inputdev->absmin[ABS_PRESSURE] = 0;
1004 aiptek->inputdev->absmax[ABS_PRESSURE] = ret - 1;
1006 /* Depending on whether we are in absolute or relative mode, we will
1007 * do a switchToTablet(absolute) or switchToMouse(relative) command.
1009 if (aiptek->curSetting.coordinateMode ==
1010 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
1011 /* Execute switchToTablet */
1012 if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) {
1016 /* Execute switchToMouse */
1017 if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) {
1022 /* Enable the macro keys */
1023 if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0)
1026 /* Execute FilterOn */
1027 if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0)
1031 /* Execute AutoGainOn */
1032 if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0)
1035 /* Reset the eventCount, so we track events from last (re)programming
1037 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA;
1038 aiptek->eventCount = 0;
1043 /***********************************************************************
1044 * Sysfs functions. Sysfs prefers that individually-tunable parameters
1045 * exist in their separate pseudo-files. Summary data that is immutable
1046 * may exist in a singular file so long as you don't define a writeable
1050 /***********************************************************************
1051 * support the 'size' file -- display support
1053 static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf)
1055 struct aiptek *aiptek = dev_get_drvdata(dev);
1057 return snprintf(buf, PAGE_SIZE, "%dx%d\n",
1058 aiptek->inputdev->absmax[ABS_X] + 1,
1059 aiptek->inputdev->absmax[ABS_Y] + 1);
1062 /* These structs define the sysfs files, param #1 is the name of the
1063 * file, param 2 is the file permissions, param 3 & 4 are to the
1064 * output generator and input parser routines. Absence of a routine is
1065 * permitted -- it only means can't either 'cat' the file, or send data
1068 static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL);
1070 /***********************************************************************
1071 * support routines for the 'pointer_mode' file. Note that this file
1072 * both displays current setting and allows reprogramming.
1074 static struct aiptek_map pointer_mode_map[] = {
1075 { "stylus", AIPTEK_POINTER_ONLY_STYLUS_MODE },
1076 { "mouse", AIPTEK_POINTER_ONLY_MOUSE_MODE },
1077 { "either", AIPTEK_POINTER_EITHER_MODE },
1078 { NULL, AIPTEK_INVALID_VALUE }
1081 static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf)
1083 struct aiptek *aiptek = dev_get_drvdata(dev);
1085 return snprintf(buf, PAGE_SIZE, "%s\n",
1086 map_val_to_str(pointer_mode_map,
1087 aiptek->curSetting.pointerMode));
1091 store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1093 struct aiptek *aiptek = dev_get_drvdata(dev);
1094 int new_mode = map_str_to_val(pointer_mode_map, buf, count);
1096 if (new_mode == AIPTEK_INVALID_VALUE)
1099 aiptek->newSetting.pointerMode = new_mode;
1103 static DEVICE_ATTR(pointer_mode,
1105 show_tabletPointerMode, store_tabletPointerMode);
1107 /***********************************************************************
1108 * support routines for the 'coordinate_mode' file. Note that this file
1109 * both displays current setting and allows reprogramming.
1112 static struct aiptek_map coordinate_mode_map[] = {
1113 { "absolute", AIPTEK_COORDINATE_ABSOLUTE_MODE },
1114 { "relative", AIPTEK_COORDINATE_RELATIVE_MODE },
1115 { NULL, AIPTEK_INVALID_VALUE }
1118 static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf)
1120 struct aiptek *aiptek = dev_get_drvdata(dev);
1122 return snprintf(buf, PAGE_SIZE, "%s\n",
1123 map_val_to_str(coordinate_mode_map,
1124 aiptek->curSetting.coordinateMode));
1128 store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1130 struct aiptek *aiptek = dev_get_drvdata(dev);
1131 int new_mode = map_str_to_val(coordinate_mode_map, buf, count);
1133 if (new_mode == AIPTEK_INVALID_VALUE)
1136 aiptek->newSetting.coordinateMode = new_mode;
1140 static DEVICE_ATTR(coordinate_mode,
1142 show_tabletCoordinateMode, store_tabletCoordinateMode);
1144 /***********************************************************************
1145 * support routines for the 'tool_mode' file. Note that this file
1146 * both displays current setting and allows reprogramming.
1149 static struct aiptek_map tool_mode_map[] = {
1150 { "mouse", AIPTEK_TOOL_BUTTON_MOUSE_MODE },
1151 { "eraser", AIPTEK_TOOL_BUTTON_ERASER_MODE },
1152 { "pencil", AIPTEK_TOOL_BUTTON_PENCIL_MODE },
1153 { "pen", AIPTEK_TOOL_BUTTON_PEN_MODE },
1154 { "brush", AIPTEK_TOOL_BUTTON_BRUSH_MODE },
1155 { "airbrush", AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE },
1156 { "lens", AIPTEK_TOOL_BUTTON_LENS_MODE },
1157 { NULL, AIPTEK_INVALID_VALUE }
1160 static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf)
1162 struct aiptek *aiptek = dev_get_drvdata(dev);
1164 return snprintf(buf, PAGE_SIZE, "%s\n",
1165 map_val_to_str(tool_mode_map,
1166 aiptek->curSetting.toolMode));
1170 store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1172 struct aiptek *aiptek = dev_get_drvdata(dev);
1173 int new_mode = map_str_to_val(tool_mode_map, buf, count);
1175 if (new_mode == AIPTEK_INVALID_VALUE)
1178 aiptek->newSetting.toolMode = new_mode;
1182 static DEVICE_ATTR(tool_mode,
1184 show_tabletToolMode, store_tabletToolMode);
1186 /***********************************************************************
1187 * support routines for the 'xtilt' file. Note that this file
1188 * both displays current setting and allows reprogramming.
1190 static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf)
1192 struct aiptek *aiptek = dev_get_drvdata(dev);
1194 if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
1195 return snprintf(buf, PAGE_SIZE, "disable\n");
1197 return snprintf(buf, PAGE_SIZE, "%d\n",
1198 aiptek->curSetting.xTilt);
1203 store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1205 struct aiptek *aiptek = dev_get_drvdata(dev);
1208 if (strcmp(buf, "disable") == 0) {
1209 aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
1211 x = (int)simple_strtol(buf, NULL, 10);
1212 if (x >= AIPTEK_TILT_MIN && x <= AIPTEK_TILT_MAX) {
1213 aiptek->newSetting.xTilt = x;
1219 static DEVICE_ATTR(xtilt,
1220 S_IRUGO | S_IWUGO, show_tabletXtilt, store_tabletXtilt);
1222 /***********************************************************************
1223 * support routines for the 'ytilt' file. Note that this file
1224 * both displays current setting and allows reprogramming.
1226 static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf)
1228 struct aiptek *aiptek = dev_get_drvdata(dev);
1230 if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
1231 return snprintf(buf, PAGE_SIZE, "disable\n");
1233 return snprintf(buf, PAGE_SIZE, "%d\n",
1234 aiptek->curSetting.yTilt);
1239 store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1241 struct aiptek *aiptek = dev_get_drvdata(dev);
1244 if (strcmp(buf, "disable") == 0) {
1245 aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
1247 y = (int)simple_strtol(buf, NULL, 10);
1248 if (y >= AIPTEK_TILT_MIN && y <= AIPTEK_TILT_MAX) {
1249 aiptek->newSetting.yTilt = y;
1255 static DEVICE_ATTR(ytilt,
1256 S_IRUGO | S_IWUGO, show_tabletYtilt, store_tabletYtilt);
1258 /***********************************************************************
1259 * support routines for the 'jitter' file. Note that this file
1260 * both displays current setting and allows reprogramming.
1262 static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf)
1264 struct aiptek *aiptek = dev_get_drvdata(dev);
1266 return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay);
1270 store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1272 struct aiptek *aiptek = dev_get_drvdata(dev);
1274 aiptek->newSetting.jitterDelay = (int)simple_strtol(buf, NULL, 10);
1278 static DEVICE_ATTR(jitter,
1280 show_tabletJitterDelay, store_tabletJitterDelay);
1282 /***********************************************************************
1283 * support routines for the 'delay' file. Note that this file
1284 * both displays current setting and allows reprogramming.
1286 static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf)
1288 struct aiptek *aiptek = dev_get_drvdata(dev);
1290 return snprintf(buf, PAGE_SIZE, "%d\n",
1291 aiptek->curSetting.programmableDelay);
1295 store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1297 struct aiptek *aiptek = dev_get_drvdata(dev);
1299 aiptek->newSetting.programmableDelay = (int)simple_strtol(buf, NULL, 10);
1303 static DEVICE_ATTR(delay,
1305 show_tabletProgrammableDelay, store_tabletProgrammableDelay);
1307 /***********************************************************************
1308 * support routines for the 'event_count' file. Note that this file
1309 * only displays current setting.
1311 static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf)
1313 struct aiptek *aiptek = dev_get_drvdata(dev);
1315 return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount);
1318 static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL);
1320 /***********************************************************************
1321 * support routines for the 'diagnostic' file. Note that this file
1322 * only displays current setting.
1324 static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf)
1326 struct aiptek *aiptek = dev_get_drvdata(dev);
1329 switch (aiptek->diagnostic) {
1330 case AIPTEK_DIAGNOSTIC_NA:
1331 retMsg = "no errors\n";
1334 case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE:
1335 retMsg = "Error: receiving relative reports\n";
1338 case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE:
1339 retMsg = "Error: receiving absolute reports\n";
1342 case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED:
1343 if (aiptek->curSetting.pointerMode ==
1344 AIPTEK_POINTER_ONLY_MOUSE_MODE) {
1345 retMsg = "Error: receiving stylus reports\n";
1347 retMsg = "Error: receiving mouse reports\n";
1354 return snprintf(buf, PAGE_SIZE, retMsg);
1357 static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL);
1359 /***********************************************************************
1360 * support routines for the 'stylus_upper' file. Note that this file
1361 * both displays current setting and allows for setting changing.
1364 static struct aiptek_map stylus_button_map[] = {
1365 { "upper", AIPTEK_STYLUS_UPPER_BUTTON },
1366 { "lower", AIPTEK_STYLUS_LOWER_BUTTON },
1367 { NULL, AIPTEK_INVALID_VALUE }
1370 static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf)
1372 struct aiptek *aiptek = dev_get_drvdata(dev);
1374 return snprintf(buf, PAGE_SIZE, "%s\n",
1375 map_val_to_str(stylus_button_map,
1376 aiptek->curSetting.stylusButtonUpper));
1380 store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1382 struct aiptek *aiptek = dev_get_drvdata(dev);
1383 int new_button = map_str_to_val(stylus_button_map, buf, count);
1385 if (new_button == AIPTEK_INVALID_VALUE)
1388 aiptek->newSetting.stylusButtonUpper = new_button;
1392 static DEVICE_ATTR(stylus_upper,
1394 show_tabletStylusUpper, store_tabletStylusUpper);
1396 /***********************************************************************
1397 * support routines for the 'stylus_lower' file. Note that this file
1398 * both displays current setting and allows for setting changing.
1401 static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf)
1403 struct aiptek *aiptek = dev_get_drvdata(dev);
1405 return snprintf(buf, PAGE_SIZE, "%s\n",
1406 map_val_to_str(stylus_button_map,
1407 aiptek->curSetting.stylusButtonLower));
1411 store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1413 struct aiptek *aiptek = dev_get_drvdata(dev);
1414 int new_button = map_str_to_val(stylus_button_map, buf, count);
1416 if (new_button == AIPTEK_INVALID_VALUE)
1419 aiptek->newSetting.stylusButtonLower = new_button;
1423 static DEVICE_ATTR(stylus_lower,
1425 show_tabletStylusLower, store_tabletStylusLower);
1427 /***********************************************************************
1428 * support routines for the 'mouse_left' file. Note that this file
1429 * both displays current setting and allows for setting changing.
1432 static struct aiptek_map mouse_button_map[] = {
1433 { "left", AIPTEK_MOUSE_LEFT_BUTTON },
1434 { "middle", AIPTEK_MOUSE_MIDDLE_BUTTON },
1435 { "right", AIPTEK_MOUSE_RIGHT_BUTTON },
1436 { NULL, AIPTEK_INVALID_VALUE }
1439 static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf)
1441 struct aiptek *aiptek = dev_get_drvdata(dev);
1443 return snprintf(buf, PAGE_SIZE, "%s\n",
1444 map_val_to_str(mouse_button_map,
1445 aiptek->curSetting.mouseButtonLeft));
1449 store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1451 struct aiptek *aiptek = dev_get_drvdata(dev);
1452 int new_button = map_str_to_val(mouse_button_map, buf, count);
1454 if (new_button == AIPTEK_INVALID_VALUE)
1457 aiptek->newSetting.mouseButtonLeft = new_button;
1461 static DEVICE_ATTR(mouse_left,
1463 show_tabletMouseLeft, store_tabletMouseLeft);
1465 /***********************************************************************
1466 * support routines for the 'mouse_middle' file. Note that this file
1467 * both displays current setting and allows for setting changing.
1469 static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf)
1471 struct aiptek *aiptek = dev_get_drvdata(dev);
1473 return snprintf(buf, PAGE_SIZE, "%s\n",
1474 map_val_to_str(mouse_button_map,
1475 aiptek->curSetting.mouseButtonMiddle));
1479 store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1481 struct aiptek *aiptek = dev_get_drvdata(dev);
1482 int new_button = map_str_to_val(mouse_button_map, buf, count);
1484 if (new_button == AIPTEK_INVALID_VALUE)
1487 aiptek->newSetting.mouseButtonMiddle = new_button;
1491 static DEVICE_ATTR(mouse_middle,
1493 show_tabletMouseMiddle, store_tabletMouseMiddle);
1495 /***********************************************************************
1496 * support routines for the 'mouse_right' file. Note that this file
1497 * both displays current setting and allows for setting changing.
1499 static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf)
1501 struct aiptek *aiptek = dev_get_drvdata(dev);
1503 return snprintf(buf, PAGE_SIZE, "%s\n",
1504 map_val_to_str(mouse_button_map,
1505 aiptek->curSetting.mouseButtonRight));
1509 store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1511 struct aiptek *aiptek = dev_get_drvdata(dev);
1512 int new_button = map_str_to_val(mouse_button_map, buf, count);
1514 if (new_button == AIPTEK_INVALID_VALUE)
1517 aiptek->newSetting.mouseButtonRight = new_button;
1521 static DEVICE_ATTR(mouse_right,
1523 show_tabletMouseRight, store_tabletMouseRight);
1525 /***********************************************************************
1526 * support routines for the 'wheel' file. Note that this file
1527 * both displays current setting and allows for setting changing.
1529 static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf)
1531 struct aiptek *aiptek = dev_get_drvdata(dev);
1533 if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
1534 return snprintf(buf, PAGE_SIZE, "disable\n");
1536 return snprintf(buf, PAGE_SIZE, "%d\n",
1537 aiptek->curSetting.wheel);
1542 store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1544 struct aiptek *aiptek = dev_get_drvdata(dev);
1546 aiptek->newSetting.wheel = (int)simple_strtol(buf, NULL, 10);
1550 static DEVICE_ATTR(wheel,
1551 S_IRUGO | S_IWUGO, show_tabletWheel, store_tabletWheel);
1553 /***********************************************************************
1554 * support routines for the 'execute' file. Note that this file
1555 * both displays current setting and allows for setting changing.
1557 static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf)
1559 /* There is nothing useful to display, so a one-line manual
1562 return snprintf(buf, PAGE_SIZE,
1563 "Write anything to this file to program your tablet.\n");
1567 store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1569 struct aiptek *aiptek = dev_get_drvdata(dev);
1571 /* We do not care what you write to this file. Merely the action
1572 * of writing to this file triggers a tablet reprogramming.
1574 memcpy(&aiptek->curSetting, &aiptek->newSetting,
1575 sizeof(struct aiptek_settings));
1577 if (aiptek_program_tablet(aiptek) < 0)
1583 static DEVICE_ATTR(execute,
1584 S_IRUGO | S_IWUGO, show_tabletExecute, store_tabletExecute);
1586 /***********************************************************************
1587 * support routines for the 'odm_code' file. Note that this file
1588 * only displays current setting.
1590 static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf)
1592 struct aiptek *aiptek = dev_get_drvdata(dev);
1594 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode);
1597 static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL);
1599 /***********************************************************************
1600 * support routines for the 'model_code' file. Note that this file
1601 * only displays current setting.
1603 static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf)
1605 struct aiptek *aiptek = dev_get_drvdata(dev);
1607 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode);
1610 static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL);
1612 /***********************************************************************
1613 * support routines for the 'firmware_code' file. Note that this file
1614 * only displays current setting.
1616 static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf)
1618 struct aiptek *aiptek = dev_get_drvdata(dev);
1620 return snprintf(buf, PAGE_SIZE, "%04x\n",
1621 aiptek->features.firmwareCode);
1624 static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
1626 static struct attribute *aiptek_attributes[] = {
1627 &dev_attr_size.attr,
1628 &dev_attr_pointer_mode.attr,
1629 &dev_attr_coordinate_mode.attr,
1630 &dev_attr_tool_mode.attr,
1631 &dev_attr_xtilt.attr,
1632 &dev_attr_ytilt.attr,
1633 &dev_attr_jitter.attr,
1634 &dev_attr_delay.attr,
1635 &dev_attr_event_count.attr,
1636 &dev_attr_diagnostic.attr,
1637 &dev_attr_odm_code.attr,
1638 &dev_attr_model_code.attr,
1639 &dev_attr_firmware_code.attr,
1640 &dev_attr_stylus_lower.attr,
1641 &dev_attr_stylus_upper.attr,
1642 &dev_attr_mouse_left.attr,
1643 &dev_attr_mouse_middle.attr,
1644 &dev_attr_mouse_right.attr,
1645 &dev_attr_wheel.attr,
1646 &dev_attr_execute.attr,
1650 static struct attribute_group aiptek_attribute_group = {
1651 .attrs = aiptek_attributes,
1654 /***********************************************************************
1655 * This routine is called when a tablet has been identified. It basically
1656 * sets up the tablet and the driver's internal structures.
1659 aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
1661 struct usb_device *usbdev = interface_to_usbdev(intf);
1662 struct usb_endpoint_descriptor *endpoint;
1663 struct aiptek *aiptek;
1664 struct input_dev *inputdev;
1667 AIPTEK_PROGRAMMABLE_DELAY_50,
1668 AIPTEK_PROGRAMMABLE_DELAY_400,
1669 AIPTEK_PROGRAMMABLE_DELAY_25,
1670 AIPTEK_PROGRAMMABLE_DELAY_100,
1671 AIPTEK_PROGRAMMABLE_DELAY_200,
1672 AIPTEK_PROGRAMMABLE_DELAY_300
1676 /* programmableDelay is where the command-line specified
1677 * delay is kept. We make it the first element of speeds[],
1678 * so therefore, your override speed is tried first, then the
1679 * remainder. Note that the default value of 400ms will be tried
1680 * if you do not specify any command line parameter.
1682 speeds[0] = programmableDelay;
1684 aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL);
1685 inputdev = input_allocate_device();
1686 if (!aiptek || !inputdev) {
1687 warn("aiptek: cannot allocate memory or input device");
1691 aiptek->data = usb_buffer_alloc(usbdev, AIPTEK_PACKET_LENGTH,
1692 GFP_ATOMIC, &aiptek->data_dma);
1693 if (!aiptek->data) {
1694 warn("aiptek: cannot allocate usb buffer");
1698 aiptek->urb = usb_alloc_urb(0, GFP_KERNEL);
1700 warn("aiptek: cannot allocate urb");
1704 aiptek->inputdev = inputdev;
1705 aiptek->usbdev = usbdev;
1706 aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber;
1707 aiptek->inDelay = 0;
1708 aiptek->endDelay = 0;
1709 aiptek->previousJitterable = 0;
1711 /* Set up the curSettings struct. Said struct contains the current
1712 * programmable parameters. The newSetting struct contains changes
1713 * the user makes to the settings via the sysfs interface. Those
1714 * changes are not "committed" to curSettings until the user
1715 * writes to the sysfs/.../execute file.
1717 aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
1718 aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE;
1719 aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
1720 aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE;
1721 aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE;
1722 aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
1723 aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON;
1724 aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
1725 aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON;
1726 aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON;
1727 aiptek->curSetting.jitterDelay = jitterDelay;
1728 aiptek->curSetting.programmableDelay = programmableDelay;
1730 /* Both structs should have equivalent settings
1732 aiptek->newSetting = aiptek->curSetting;
1734 /* Determine the usb devices' physical path.
1735 * Asketh not why we always pretend we're using "../input0",
1736 * but I suspect this will have to be refactored one
1737 * day if a single USB device can be a keyboard & a mouse
1738 * & a tablet, and the inputX number actually will tell
1741 usb_make_path(usbdev, aiptek->features.usbPath,
1742 sizeof(aiptek->features.usbPath));
1743 strlcat(aiptek->features.usbPath, "/input0",
1744 sizeof(aiptek->features.usbPath));
1746 /* Set up client data, pointers to open and close routines
1747 * for the input device.
1749 inputdev->name = "Aiptek";
1750 inputdev->phys = aiptek->features.usbPath;
1751 usb_to_input_id(usbdev, &inputdev->id);
1752 inputdev->dev.parent = &intf->dev;
1754 input_set_drvdata(inputdev, aiptek);
1756 inputdev->open = aiptek_open;
1757 inputdev->close = aiptek_close;
1759 /* Now program the capacities of the tablet, in terms of being
1762 for (i = 0; i < ARRAY_SIZE(eventTypes); ++i)
1763 __set_bit(eventTypes[i], inputdev->evbit);
1765 for (i = 0; i < ARRAY_SIZE(absEvents); ++i)
1766 __set_bit(absEvents[i], inputdev->absbit);
1768 for (i = 0; i < ARRAY_SIZE(relEvents); ++i)
1769 __set_bit(relEvents[i], inputdev->relbit);
1771 __set_bit(MSC_SERIAL, inputdev->mscbit);
1773 /* Set up key and button codes */
1774 for (i = 0; i < ARRAY_SIZE(buttonEvents); ++i)
1775 __set_bit(buttonEvents[i], inputdev->keybit);
1777 for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i)
1778 __set_bit(macroKeyEvents[i], inputdev->keybit);
1781 * Program the input device coordinate capacities. We do not yet
1782 * know what maximum X, Y, and Z values are, so we're putting fake
1783 * values in. Later, we'll ask the tablet to put in the correct
1786 input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0);
1787 input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0);
1788 input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0);
1789 input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1790 input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1791 input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
1793 endpoint = &intf->altsetting[0].endpoint[0].desc;
1795 /* Go set up our URB, which is called when the tablet receives
1798 usb_fill_int_urb(aiptek->urb,
1800 usb_rcvintpipe(aiptek->usbdev,
1801 endpoint->bEndpointAddress),
1802 aiptek->data, 8, aiptek_irq, aiptek,
1803 endpoint->bInterval);
1805 aiptek->urb->transfer_dma = aiptek->data_dma;
1806 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1808 /* Program the tablet. This sets the tablet up in the mode
1809 * specified in newSetting, and also queries the tablet's
1810 * physical capacities.
1812 * Sanity check: if a tablet doesn't like the slow programmatic
1813 * delay, we often get sizes of 0x0. Let's use that as an indicator
1814 * to try faster delays, up to 25 ms. If that logic fails, well, you'll
1815 * have to explain to us how your tablet thinks it's 0x0, and yet that's
1819 for (i = 0; i < ARRAY_SIZE(speeds); ++i) {
1820 aiptek->curSetting.programmableDelay = speeds[i];
1821 (void)aiptek_program_tablet(aiptek);
1822 if (aiptek->inputdev->absmax[ABS_X] > 0) {
1823 info("input: Aiptek using %d ms programming speed\n",
1824 aiptek->curSetting.programmableDelay);
1829 /* Murphy says that some day someone will have a tablet that fails the
1830 above test. That's you, Frederic Rodrigo */
1831 if (i == ARRAY_SIZE(speeds)) {
1832 info("input: Aiptek tried all speeds, no sane response");
1836 /* Associate this driver's struct with the usb interface.
1838 usb_set_intfdata(intf, aiptek);
1840 /* Set up the sysfs files
1842 err = sysfs_create_group(&intf->dev.kobj, &aiptek_attribute_group);
1844 warn("aiptek: cannot create sysfs group err: %d", err);
1848 /* Register the tablet as an Input Device
1850 err = input_register_device(aiptek->inputdev);
1852 warn("aiptek: input_register_device returned err: %d", err);
1857 fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1858 fail3: usb_free_urb(aiptek->urb);
1859 fail2: usb_buffer_free(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
1861 fail1: usb_set_intfdata(intf, NULL);
1862 input_free_device(inputdev);
1867 /***********************************************************************
1868 * Deal with tablet disconnecting from the system.
1870 static void aiptek_disconnect(struct usb_interface *intf)
1872 struct aiptek *aiptek = usb_get_intfdata(intf);
1874 /* Disassociate driver's struct with usb interface
1876 usb_set_intfdata(intf, NULL);
1877 if (aiptek != NULL) {
1878 /* Free & unhook everything from the system.
1880 usb_kill_urb(aiptek->urb);
1881 input_unregister_device(aiptek->inputdev);
1882 sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1883 usb_free_urb(aiptek->urb);
1884 usb_buffer_free(interface_to_usbdev(intf),
1885 AIPTEK_PACKET_LENGTH,
1886 aiptek->data, aiptek->data_dma);
1891 static struct usb_driver aiptek_driver = {
1893 .probe = aiptek_probe,
1894 .disconnect = aiptek_disconnect,
1895 .id_table = aiptek_ids,
1898 static int __init aiptek_init(void)
1900 int result = usb_register(&aiptek_driver);
1902 info(DRIVER_VERSION ": " DRIVER_AUTHOR);
1908 static void __exit aiptek_exit(void)
1910 usb_deregister(&aiptek_driver);
1913 MODULE_AUTHOR(DRIVER_AUTHOR);
1914 MODULE_DESCRIPTION(DRIVER_DESC);
1915 MODULE_LICENSE("GPL");
1917 module_param(programmableDelay, int, 0);
1918 MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming");
1919 module_param(jitterDelay, int, 0);
1920 MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay");
1922 module_init(aiptek_init);
1923 module_exit(aiptek_exit);