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/usb/input.h>
78 #include <asm/uaccess.h>
79 #include <asm/unaligned.h>
80
81 /*
82 * Version Information
83 */
84 #define DRIVER_VERSION "v2.3 (May 2, 2007)"
85 #define DRIVER_AUTHOR "Bryan W. Headley/Chris Atenasio/Cedric Brun/Rene van Paassen"
86 #define DRIVER_DESC "Aiptek HyperPen USB Tablet Driver (Linux 2.6.x)"
87
88 /*
89 * Aiptek status packet:
90 *
91 * (returned as Report 1 - relative coordinates from mouse and stylus)
92 *
93 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
94 * byte0 0 0 0 0 0 0 0 1
95 * byte1 0 0 0 0 0 BS2 BS Tip
96 * byte2 X7 X6 X5 X4 X3 X2 X1 X0
97 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
98 *
99 * (returned as Report 2 - absolute coordinates from the stylus)
100 *
101 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
102 * byte0 0 0 0 0 0 0 1 0
103 * byte1 X7 X6 X5 X4 X3 X2 X1 X0
104 * byte2 X15 X14 X13 X12 X11 X10 X9 X8
105 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
106 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
107 * byte5 * * * BS2 BS1 Tip IR DV
108 * byte6 P7 P6 P5 P4 P3 P2 P1 P0
109 * byte7 P15 P14 P13 P12 P11 P10 P9 P8
110 *
111 * (returned as Report 3 - absolute coordinates from the mouse)
112 *
113 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
114 * byte0 0 0 0 0 0 0 1 1
115 * byte1 X7 X6 X5 X4 X3 X2 X1 X0
116 * byte2 X15 X14 X13 X12 X11 X10 X9 X8
117 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
118 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
119 * byte5 * * * BS2 BS1 Tip IR DV
120 * byte6 P7 P6 P5 P4 P3 P2 P1 P0
121 * byte7 P15 P14 P13 P12 P11 P10 P9 P8
122 *
123 * (returned as Report 4 - macrokeys from the stylus)
124 *
125 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
126 * byte0 0 0 0 0 0 1 0 0
127 * byte1 0 0 0 BS2 BS Tip IR DV
128 * byte2 0 0 0 0 0 0 1 0
129 * byte3 0 0 0 K4 K3 K2 K1 K0
130 * byte4 P7 P6 P5 P4 P3 P2 P1 P0
131 * byte5 P15 P14 P13 P12 P11 P10 P9 P8
132 *
133 * (returned as Report 5 - macrokeys from the mouse)
134 *
135 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
136 * byte0 0 0 0 0 0 1 0 1
137 * byte1 0 0 0 BS2 BS Tip IR DV
138 * byte2 0 0 0 0 0 0 1 0
139 * byte3 0 0 0 K4 K3 K2 K1 K0
140 * byte4 P7 P6 P5 P4 P3 P2 P1 P0
141 * byte5 P15 P14 P13 P12 P11 P10 P9 P8
142 *
143 * IR: In Range = Proximity on
144 * DV = Data Valid
145 * BS = Barrel Switch (as in, macro keys)
146 * BS2 also referred to as Tablet Pick
147 *
148 * Command Summary:
149 *
150 * Use report_type CONTROL (3)
151 * Use report_id 2
152 *
153 * Command/Data Description Return Bytes Return Value
154 * 0x10/0x00 SwitchToMouse 0
155 * 0x10/0x01 SwitchToTablet 0
156 * 0x18/0x04 SetResolution 0
157 * 0x12/0xFF AutoGainOn 0
158 * 0x17/0x00 FilterOn 0
159 * 0x01/0x00 GetXExtension 2 MaxX
160 * 0x01/0x01 GetYExtension 2 MaxY
161 * 0x02/0x00 GetModelCode 2 ModelCode = LOBYTE
162 * 0x03/0x00 GetODMCode 2 ODMCode
163 * 0x08/0x00 GetPressureLevels 2 =512
164 * 0x04/0x00 GetFirmwareVersion 2 Firmware Version
165 * 0x11/0x02 EnableMacroKeys 0
166 *
167 * To initialize the tablet:
168 *
169 * (1) Send Resolution500LPI (Command)
170 * (2) Query for Model code (Option Report)
171 * (3) Query for ODM code (Option Report)
172 * (4) Query for firmware (Option Report)
173 * (5) Query for GetXExtension (Option Report)
174 * (6) Query for GetYExtension (Option Report)
175 * (7) Query for GetPressureLevels (Option Report)
176 * (8) SwitchToTablet for Absolute coordinates, or
177 * SwitchToMouse for Relative coordinates (Command)
178 * (9) EnableMacroKeys (Command)
179 * (10) FilterOn (Command)
180 * (11) AutoGainOn (Command)
181 *
182 * (Step 9 can be omitted, but you'll then have no function keys.)
183 */
184
185 #define USB_VENDOR_ID_AIPTEK 0x08ca
186 #define USB_VENDOR_ID_KYE 0x0458
187 #define USB_REQ_GET_REPORT 0x01
188 #define USB_REQ_SET_REPORT 0x09
189
190 /* PointerMode codes
191 */
192 #define AIPTEK_POINTER_ONLY_MOUSE_MODE 0
193 #define AIPTEK_POINTER_ONLY_STYLUS_MODE 1
194 #define AIPTEK_POINTER_EITHER_MODE 2
195
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)
202
203 /* CoordinateMode code
204 */
205 #define AIPTEK_COORDINATE_RELATIVE_MODE 0
206 #define AIPTEK_COORDINATE_ABSOLUTE_MODE 1
207
208 /* XTilt and YTilt values
209 */
210 #define AIPTEK_TILT_MIN (-128)
211 #define AIPTEK_TILT_MAX 127
212 #define AIPTEK_TILT_DISABLE (-10101)
213
214 /* Wheel values
215 */
216 #define AIPTEK_WHEEL_MIN 0
217 #define AIPTEK_WHEEL_MAX 1024
218 #define AIPTEK_WHEEL_DISABLE (-10101)
219
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.
223 */
224 /* toolMode codes
225 */
226 #define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN
227 #define AIPTEK_TOOL_BUTTON_PENCIL_MODE BTN_TOOL_PENCIL
228 #define AIPTEK_TOOL_BUTTON_BRUSH_MODE BTN_TOOL_BRUSH
229 #define AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE BTN_TOOL_AIRBRUSH
230 #define AIPTEK_TOOL_BUTTON_ERASER_MODE BTN_TOOL_RUBBER
231 #define AIPTEK_TOOL_BUTTON_MOUSE_MODE BTN_TOOL_MOUSE
232 #define AIPTEK_TOOL_BUTTON_LENS_MODE BTN_TOOL_LENS
233
234 /* Diagnostic message codes
235 */
236 #define AIPTEK_DIAGNOSTIC_NA 0
237 #define AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE 1
238 #define AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE 2
239 #define AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED 3
240
241 /* Time to wait (in ms) to help mask hand jittering
242 * when pressing the stylus buttons.
243 */
244 #define AIPTEK_JITTER_DELAY_DEFAULT 50
245
246 /* Time to wait (in ms) in-between sending the tablet
247 * a command and beginning the process of reading the return
248 * sequence from the tablet.
249 */
250 #define AIPTEK_PROGRAMMABLE_DELAY_25 25
251 #define AIPTEK_PROGRAMMABLE_DELAY_50 50
252 #define AIPTEK_PROGRAMMABLE_DELAY_100 100
253 #define AIPTEK_PROGRAMMABLE_DELAY_200 200
254 #define AIPTEK_PROGRAMMABLE_DELAY_300 300
255 #define AIPTEK_PROGRAMMABLE_DELAY_400 400
256 #define AIPTEK_PROGRAMMABLE_DELAY_DEFAULT AIPTEK_PROGRAMMABLE_DELAY_400
257
258 /* Mouse button programming
259 */
260 #define AIPTEK_MOUSE_LEFT_BUTTON 0x04
261 #define AIPTEK_MOUSE_RIGHT_BUTTON 0x08
262 #define AIPTEK_MOUSE_MIDDLE_BUTTON 0x10
263
264 /* Stylus button programming
265 */
266 #define AIPTEK_STYLUS_LOWER_BUTTON 0x08
267 #define AIPTEK_STYLUS_UPPER_BUTTON 0x10
268
269 /* Length of incoming packet from the tablet
270 */
271 #define AIPTEK_PACKET_LENGTH 8
272
273 /* We report in EV_MISC both the proximity and
274 * whether the report came from the stylus, tablet mouse
275 * or "unknown" -- Unknown when the tablet is in relative
276 * mode, because we only get report 1's.
277 */
278 #define AIPTEK_REPORT_TOOL_UNKNOWN 0x10
279 #define AIPTEK_REPORT_TOOL_STYLUS 0x20
280 #define AIPTEK_REPORT_TOOL_MOUSE 0x40
281
282 static int programmableDelay = AIPTEK_PROGRAMMABLE_DELAY_DEFAULT;
283 static int jitterDelay = AIPTEK_JITTER_DELAY_DEFAULT;
284
285 struct aiptek_features {
286 int odmCode; /* Tablet manufacturer code */
287 int modelCode; /* Tablet model code (not unique) */
288 int firmwareCode; /* prom/eeprom version */
289 char usbPath[64 + 1]; /* device's physical usb path */
290 };
291
292 struct aiptek_settings {
293 int pointerMode; /* stylus-, mouse-only or either */
294 int coordinateMode; /* absolute/relative coords */
295 int toolMode; /* pen, pencil, brush, etc. tool */
296 int xTilt; /* synthetic xTilt amount */
297 int yTilt; /* synthetic yTilt amount */
298 int wheel; /* synthetic wheel amount */
299 int stylusButtonUpper; /* stylus upper btn delivers... */
300 int stylusButtonLower; /* stylus lower btn delivers... */
301 int mouseButtonLeft; /* mouse left btn delivers... */
302 int mouseButtonMiddle; /* mouse middle btn delivers... */
303 int mouseButtonRight; /* mouse right btn delivers... */
304 int programmableDelay; /* delay for tablet programming */
305 int jitterDelay; /* delay for hand jittering */
306 };
307
308 struct aiptek {
309 struct input_dev *inputdev; /* input device struct */
310 struct usb_interface *intf; /* usb interface struct */
311 struct urb *urb; /* urb for incoming reports */
312 dma_addr_t data_dma; /* our dma stuffage */
313 struct aiptek_features features; /* tablet's array of features */
314 struct aiptek_settings curSetting; /* tablet's current programmable */
315 struct aiptek_settings newSetting; /* ... and new param settings */
316 unsigned int ifnum; /* interface number for IO */
317 int diagnostic; /* tablet diagnostic codes */
318 unsigned long eventCount; /* event count */
319 int inDelay; /* jitter: in jitter delay? */
320 unsigned long endDelay; /* jitter: time when delay ends */
321 int previousJitterable; /* jitterable prev value */
322
323 int lastMacro; /* macro key to reset */
324 int previousToolMode; /* pen, pencil, brush, etc. tool */
325 unsigned char *data; /* incoming packet data */
326 };
327
328 static const int eventTypes[] = {
329 EV_KEY, EV_ABS, EV_REL, EV_MSC,
330 };
331
332 static const int absEvents[] = {
333 ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y,
334 ABS_WHEEL, ABS_MISC,
335 };
336
337 static const int relEvents[] = {
338 REL_X, REL_Y, REL_WHEEL,
339 };
340
341 static const int buttonEvents[] = {
342 BTN_LEFT, BTN_RIGHT, BTN_MIDDLE,
343 BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_PENCIL, BTN_TOOL_AIRBRUSH,
344 BTN_TOOL_BRUSH, BTN_TOOL_MOUSE, BTN_TOOL_LENS, BTN_TOUCH,
345 BTN_STYLUS, BTN_STYLUS2,
346 };
347
348 /*
349 * Permit easy lookup of keyboard events to send, versus
350 * the bitmap which comes from the tablet. This hides the
351 * issue that the F_keys are not sequentially numbered.
352 */
353 static const int macroKeyEvents[] = {
354 KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5,
355 KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11,
356 KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17,
357 KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23,
358 KEY_F24, KEY_STOP, KEY_AGAIN, KEY_PROPS, KEY_UNDO,
359 KEY_FRONT, KEY_COPY, KEY_OPEN, KEY_PASTE, 0
360 };
361
362 /***********************************************************************
363 * Map values to strings and back. Every map should have the following
364 * as its last element: { NULL, AIPTEK_INVALID_VALUE }.
365 */
366 #define AIPTEK_INVALID_VALUE -1
367
368 struct aiptek_map {
369 const char *string;
370 int value;
371 };
372
map_str_to_val(const struct aiptek_map * map,const char * str,size_t count)373 static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t count)
374 {
375 const struct aiptek_map *p;
376
377 if (str[count - 1] == '\n')
378 count--;
379
380 for (p = map; p->string; p++)
381 if (!strncmp(str, p->string, count))
382 return p->value;
383
384 return AIPTEK_INVALID_VALUE;
385 }
386
map_val_to_str(const struct aiptek_map * map,int val)387 static const char *map_val_to_str(const struct aiptek_map *map, int val)
388 {
389 const struct aiptek_map *p;
390
391 for (p = map; p->value != AIPTEK_INVALID_VALUE; p++)
392 if (val == p->value)
393 return p->string;
394
395 return "unknown";
396 }
397
398 /***********************************************************************
399 * aiptek_irq can receive one of six potential reports.
400 * The documentation for each is in the body of the function.
401 *
402 * The tablet reports on several attributes per invocation of
403 * aiptek_irq. Because the Linux Input Event system allows the
404 * transmission of ONE attribute per input_report_xxx() call,
405 * collation has to be done on the other end to reconstitute
406 * a complete tablet report. Further, the number of Input Event reports
407 * submitted varies, depending on what USB report type, and circumstance.
408 * To deal with this, EV_MSC is used to indicate an 'end-of-report'
409 * message. This has been an undocumented convention understood by the kernel
410 * tablet driver and clients such as gpm and XFree86's tablet drivers.
411 *
412 * Of the information received from the tablet, the one piece I
413 * cannot transmit is the proximity bit (without resorting to an EV_MSC
414 * convention above.) I therefore have taken over REL_MISC and ABS_MISC
415 * (for relative and absolute reports, respectively) for communicating
416 * Proximity. Why two events? I thought it interesting to know if the
417 * Proximity event occurred while the tablet was in absolute or relative
418 * mode.
419 * Update: REL_MISC proved not to be such a good idea. With REL_MISC you
420 * get an event transmitted each time. ABS_MISC works better, since it
421 * can be set and re-set. Thus, only using ABS_MISC from now on.
422 *
423 * Other tablets use the notion of a certain minimum stylus pressure
424 * to infer proximity. While that could have been done, that is yet
425 * another 'by convention' behavior, the documentation for which
426 * would be spread between two (or more) pieces of software.
427 *
428 * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and
429 * replaced with the input_sync() method (which emits EV_SYN.)
430 */
431
aiptek_irq(struct urb * urb)432 static void aiptek_irq(struct urb *urb)
433 {
434 struct aiptek *aiptek = urb->context;
435 unsigned char *data = aiptek->data;
436 struct input_dev *inputdev = aiptek->inputdev;
437 struct usb_interface *intf = aiptek->intf;
438 int jitterable = 0;
439 int retval, macro, x, y, z, left, right, middle, p, dv, tip, bs, pck;
440
441 switch (urb->status) {
442 case 0:
443 /* Success */
444 break;
445
446 case -ECONNRESET:
447 case -ENOENT:
448 case -ESHUTDOWN:
449 /* This urb is terminated, clean up */
450 dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",
451 __func__, urb->status);
452 return;
453
454 default:
455 dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",
456 __func__, urb->status);
457 goto exit;
458 }
459
460 /* See if we are in a delay loop -- throw out report if true.
461 */
462 if (aiptek->inDelay == 1 && time_after(aiptek->endDelay, jiffies)) {
463 goto exit;
464 }
465
466 aiptek->inDelay = 0;
467 aiptek->eventCount++;
468
469 /* Report 1 delivers relative coordinates with either a stylus
470 * or the mouse. You do not know, however, which input
471 * tool generated the event.
472 */
473 if (data[0] == 1) {
474 if (aiptek->curSetting.coordinateMode ==
475 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
476 aiptek->diagnostic =
477 AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE;
478 } else {
479 x = (signed char) data[2];
480 y = (signed char) data[3];
481
482 /* jitterable keeps track of whether any button has been pressed.
483 * We're also using it to remap the physical mouse button mask
484 * to pseudo-settings. (We don't specifically care about it's
485 * value after moving/transposing mouse button bitmasks, except
486 * that a non-zero value indicates that one or more
487 * mouse button was pressed.)
488 */
489 jitterable = data[1] & 0x07;
490
491 left = (data[1] & aiptek->curSetting.mouseButtonLeft >> 2) != 0 ? 1 : 0;
492 right = (data[1] & aiptek->curSetting.mouseButtonRight >> 2) != 0 ? 1 : 0;
493 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle >> 2) != 0 ? 1 : 0;
494
495 input_report_key(inputdev, BTN_LEFT, left);
496 input_report_key(inputdev, BTN_MIDDLE, middle);
497 input_report_key(inputdev, BTN_RIGHT, right);
498
499 input_report_abs(inputdev, ABS_MISC,
500 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
501 input_report_rel(inputdev, REL_X, x);
502 input_report_rel(inputdev, REL_Y, y);
503
504 /* Wheel support is in the form of a single-event
505 * firing.
506 */
507 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
508 input_report_rel(inputdev, REL_WHEEL,
509 aiptek->curSetting.wheel);
510 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
511 }
512 if (aiptek->lastMacro != -1) {
513 input_report_key(inputdev,
514 macroKeyEvents[aiptek->lastMacro], 0);
515 aiptek->lastMacro = -1;
516 }
517 input_sync(inputdev);
518 }
519 }
520 /* Report 2 is delivered only by the stylus, and delivers
521 * absolute coordinates.
522 */
523 else if (data[0] == 2) {
524 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
525 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
526 } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE
527 (aiptek->curSetting.pointerMode)) {
528 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
529 } else {
530 x = get_unaligned_le16(data + 1);
531 y = get_unaligned_le16(data + 3);
532 z = get_unaligned_le16(data + 6);
533
534 dv = (data[5] & 0x01) != 0 ? 1 : 0;
535 p = (data[5] & 0x02) != 0 ? 1 : 0;
536 tip = (data[5] & 0x04) != 0 ? 1 : 0;
537
538 /* Use jitterable to re-arrange button masks
539 */
540 jitterable = data[5] & 0x18;
541
542 bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
543 pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
544
545 /* dv indicates 'data valid' (e.g., the tablet is in sync
546 * and has delivered a "correct" report) We will ignore
547 * all 'bad' reports...
548 */
549 if (dv != 0) {
550 /* If the selected tool changed, reset the old
551 * tool key, and set the new one.
552 */
553 if (aiptek->previousToolMode !=
554 aiptek->curSetting.toolMode) {
555 input_report_key(inputdev,
556 aiptek->previousToolMode, 0);
557 input_report_key(inputdev,
558 aiptek->curSetting.toolMode,
559 1);
560 aiptek->previousToolMode =
561 aiptek->curSetting.toolMode;
562 }
563
564 if (p != 0) {
565 input_report_abs(inputdev, ABS_X, x);
566 input_report_abs(inputdev, ABS_Y, y);
567 input_report_abs(inputdev, ABS_PRESSURE, z);
568
569 input_report_key(inputdev, BTN_TOUCH, tip);
570 input_report_key(inputdev, BTN_STYLUS, bs);
571 input_report_key(inputdev, BTN_STYLUS2, pck);
572
573 if (aiptek->curSetting.xTilt !=
574 AIPTEK_TILT_DISABLE) {
575 input_report_abs(inputdev,
576 ABS_TILT_X,
577 aiptek->curSetting.xTilt);
578 }
579 if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) {
580 input_report_abs(inputdev,
581 ABS_TILT_Y,
582 aiptek->curSetting.yTilt);
583 }
584
585 /* Wheel support is in the form of a single-event
586 * firing.
587 */
588 if (aiptek->curSetting.wheel !=
589 AIPTEK_WHEEL_DISABLE) {
590 input_report_abs(inputdev,
591 ABS_WHEEL,
592 aiptek->curSetting.wheel);
593 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
594 }
595 }
596 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS);
597 if (aiptek->lastMacro != -1) {
598 input_report_key(inputdev,
599 macroKeyEvents[aiptek->lastMacro], 0);
600 aiptek->lastMacro = -1;
601 }
602 input_sync(inputdev);
603 }
604 }
605 }
606 /* Report 3's come from the mouse in absolute mode.
607 */
608 else if (data[0] == 3) {
609 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
610 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
611 } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE
612 (aiptek->curSetting.pointerMode)) {
613 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
614 } else {
615 x = get_unaligned_le16(data + 1);
616 y = get_unaligned_le16(data + 3);
617
618 jitterable = data[5] & 0x1c;
619
620 dv = (data[5] & 0x01) != 0 ? 1 : 0;
621 p = (data[5] & 0x02) != 0 ? 1 : 0;
622 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
623 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
624 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
625
626 if (dv != 0) {
627 /* If the selected tool changed, reset the old
628 * tool key, and set the new one.
629 */
630 if (aiptek->previousToolMode !=
631 aiptek->curSetting.toolMode) {
632 input_report_key(inputdev,
633 aiptek->previousToolMode, 0);
634 input_report_key(inputdev,
635 aiptek->curSetting.toolMode,
636 1);
637 aiptek->previousToolMode =
638 aiptek->curSetting.toolMode;
639 }
640
641 if (p != 0) {
642 input_report_abs(inputdev, ABS_X, x);
643 input_report_abs(inputdev, ABS_Y, y);
644
645 input_report_key(inputdev, BTN_LEFT, left);
646 input_report_key(inputdev, BTN_MIDDLE, middle);
647 input_report_key(inputdev, BTN_RIGHT, right);
648
649 /* Wheel support is in the form of a single-event
650 * firing.
651 */
652 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
653 input_report_abs(inputdev,
654 ABS_WHEEL,
655 aiptek->curSetting.wheel);
656 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
657 }
658 }
659 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_MOUSE);
660 if (aiptek->lastMacro != -1) {
661 input_report_key(inputdev,
662 macroKeyEvents[aiptek->lastMacro], 0);
663 aiptek->lastMacro = -1;
664 }
665 input_sync(inputdev);
666 }
667 }
668 }
669 /* Report 4s come from the macro keys when pressed by stylus
670 */
671 else if (data[0] == 4) {
672 jitterable = data[1] & 0x18;
673
674 dv = (data[1] & 0x01) != 0 ? 1 : 0;
675 p = (data[1] & 0x02) != 0 ? 1 : 0;
676 tip = (data[1] & 0x04) != 0 ? 1 : 0;
677 bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
678 pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
679
680 macro = dv && p && tip && !(data[3] & 1) ? (data[3] >> 1) : -1;
681 z = get_unaligned_le16(data + 4);
682
683 if (dv) {
684 /* If the selected tool changed, reset the old
685 * tool key, and set the new one.
686 */
687 if (aiptek->previousToolMode !=
688 aiptek->curSetting.toolMode) {
689 input_report_key(inputdev,
690 aiptek->previousToolMode, 0);
691 input_report_key(inputdev,
692 aiptek->curSetting.toolMode,
693 1);
694 aiptek->previousToolMode =
695 aiptek->curSetting.toolMode;
696 }
697 }
698
699 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
700 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
701 aiptek->lastMacro = -1;
702 }
703
704 if (macro != -1 && macro != aiptek->lastMacro) {
705 input_report_key(inputdev, macroKeyEvents[macro], 1);
706 aiptek->lastMacro = macro;
707 }
708 input_report_abs(inputdev, ABS_MISC,
709 p | AIPTEK_REPORT_TOOL_STYLUS);
710 input_sync(inputdev);
711 }
712 /* Report 5s come from the macro keys when pressed by mouse
713 */
714 else if (data[0] == 5) {
715 jitterable = data[1] & 0x1c;
716
717 dv = (data[1] & 0x01) != 0 ? 1 : 0;
718 p = (data[1] & 0x02) != 0 ? 1 : 0;
719 left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
720 right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
721 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
722 macro = dv && p && left && !(data[3] & 1) ? (data[3] >> 1) : 0;
723
724 if (dv) {
725 /* If the selected tool changed, reset the old
726 * tool key, and set the new one.
727 */
728 if (aiptek->previousToolMode !=
729 aiptek->curSetting.toolMode) {
730 input_report_key(inputdev,
731 aiptek->previousToolMode, 0);
732 input_report_key(inputdev,
733 aiptek->curSetting.toolMode, 1);
734 aiptek->previousToolMode = aiptek->curSetting.toolMode;
735 }
736 }
737
738 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
739 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
740 aiptek->lastMacro = -1;
741 }
742
743 if (macro != -1 && macro != aiptek->lastMacro) {
744 input_report_key(inputdev, macroKeyEvents[macro], 1);
745 aiptek->lastMacro = macro;
746 }
747
748 input_report_abs(inputdev, ABS_MISC,
749 p | AIPTEK_REPORT_TOOL_MOUSE);
750 input_sync(inputdev);
751 }
752 /* We have no idea which tool can generate a report 6. Theoretically,
753 * neither need to, having been given reports 4 & 5 for such use.
754 * However, report 6 is the 'official-looking' report for macroKeys;
755 * reports 4 & 5 supposively are used to support unnamed, unknown
756 * hat switches (which just so happen to be the macroKeys.)
757 */
758 else if (data[0] == 6) {
759 macro = get_unaligned_le16(data + 1);
760 if (macro > 0) {
761 input_report_key(inputdev, macroKeyEvents[macro - 1],
762 0);
763 }
764 if (macro < 25) {
765 input_report_key(inputdev, macroKeyEvents[macro + 1],
766 0);
767 }
768
769 /* If the selected tool changed, reset the old
770 tool key, and set the new one.
771 */
772 if (aiptek->previousToolMode !=
773 aiptek->curSetting.toolMode) {
774 input_report_key(inputdev,
775 aiptek->previousToolMode, 0);
776 input_report_key(inputdev,
777 aiptek->curSetting.toolMode,
778 1);
779 aiptek->previousToolMode =
780 aiptek->curSetting.toolMode;
781 }
782
783 input_report_key(inputdev, macroKeyEvents[macro], 1);
784 input_report_abs(inputdev, ABS_MISC,
785 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
786 input_sync(inputdev);
787 } else {
788 dev_dbg(&intf->dev, "Unknown report %d\n", data[0]);
789 }
790
791 /* Jitter may occur when the user presses a button on the stlyus
792 * or the mouse. What we do to prevent that is wait 'x' milliseconds
793 * following a 'jitterable' event, which should give the hand some time
794 * stabilize itself.
795 *
796 * We just introduced aiptek->previousJitterable to carry forth the
797 * notion that jitter occurs when the button state changes from on to off:
798 * a person drawing, holding a button down is not subject to jittering.
799 * With that in mind, changing from upper button depressed to lower button
800 * WILL transition through a jitter delay.
801 */
802
803 if (aiptek->previousJitterable != jitterable &&
804 aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) {
805 aiptek->endDelay = jiffies +
806 ((aiptek->curSetting.jitterDelay * HZ) / 1000);
807 aiptek->inDelay = 1;
808 }
809 aiptek->previousJitterable = jitterable;
810
811 exit:
812 retval = usb_submit_urb(urb, GFP_ATOMIC);
813 if (retval != 0) {
814 dev_err(&intf->dev,
815 "%s - usb_submit_urb failed with result %d\n",
816 __func__, retval);
817 }
818 }
819
820 /***********************************************************************
821 * These are the USB id's known so far. We do not identify them to
822 * specific Aiptek model numbers, because there has been overlaps,
823 * use, and reuse of id's in existing models. Certain models have
824 * been known to use more than one ID, indicative perhaps of
825 * manufacturing revisions. In any event, we consider these
826 * IDs to not be model-specific nor unique.
827 */
828 static const struct usb_device_id aiptek_ids[] = {
829 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)},
830 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)},
831 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)},
832 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)},
833 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)},
834 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)},
835 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)},
836 {USB_DEVICE(USB_VENDOR_ID_KYE, 0x5003)},
837 {}
838 };
839
840 MODULE_DEVICE_TABLE(usb, aiptek_ids);
841
842 /***********************************************************************
843 * Open an instance of the tablet driver.
844 */
aiptek_open(struct input_dev * inputdev)845 static int aiptek_open(struct input_dev *inputdev)
846 {
847 struct aiptek *aiptek = input_get_drvdata(inputdev);
848
849 aiptek->urb->dev = interface_to_usbdev(aiptek->intf);
850 if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0)
851 return -EIO;
852
853 return 0;
854 }
855
856 /***********************************************************************
857 * Close an instance of the tablet driver.
858 */
aiptek_close(struct input_dev * inputdev)859 static void aiptek_close(struct input_dev *inputdev)
860 {
861 struct aiptek *aiptek = input_get_drvdata(inputdev);
862
863 usb_kill_urb(aiptek->urb);
864 }
865
866 /***********************************************************************
867 * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x,
868 * where they were known as usb_set_report and usb_get_report.
869 */
870 static int
aiptek_set_report(struct aiptek * aiptek,unsigned char report_type,unsigned char report_id,void * buffer,int size)871 aiptek_set_report(struct aiptek *aiptek,
872 unsigned char report_type,
873 unsigned char report_id, void *buffer, int size)
874 {
875 struct usb_device *udev = interface_to_usbdev(aiptek->intf);
876
877 return usb_control_msg(udev,
878 usb_sndctrlpipe(udev, 0),
879 USB_REQ_SET_REPORT,
880 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
881 USB_DIR_OUT, (report_type << 8) + report_id,
882 aiptek->ifnum, buffer, size, 5000);
883 }
884
885 static int
aiptek_get_report(struct aiptek * aiptek,unsigned char report_type,unsigned char report_id,void * buffer,int size)886 aiptek_get_report(struct aiptek *aiptek,
887 unsigned char report_type,
888 unsigned char report_id, void *buffer, int size)
889 {
890 struct usb_device *udev = interface_to_usbdev(aiptek->intf);
891
892 return usb_control_msg(udev,
893 usb_rcvctrlpipe(udev, 0),
894 USB_REQ_GET_REPORT,
895 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
896 USB_DIR_IN, (report_type << 8) + report_id,
897 aiptek->ifnum, buffer, size, 5000);
898 }
899
900 /***********************************************************************
901 * Send a command to the tablet.
902 */
903 static int
aiptek_command(struct aiptek * aiptek,unsigned char command,unsigned char data)904 aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data)
905 {
906 const int sizeof_buf = 3 * sizeof(u8);
907 int ret;
908 u8 *buf;
909
910 buf = kmalloc(sizeof_buf, GFP_KERNEL);
911 if (!buf)
912 return -ENOMEM;
913
914 buf[0] = 2;
915 buf[1] = command;
916 buf[2] = data;
917
918 if ((ret =
919 aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
920 dev_dbg(&aiptek->intf->dev,
921 "aiptek_program: failed, tried to send: 0x%02x 0x%02x\n",
922 command, data);
923 }
924 kfree(buf);
925 return ret < 0 ? ret : 0;
926 }
927
928 /***********************************************************************
929 * Retrieve information from the tablet. Querying info is defined as first
930 * sending the {command,data} sequence as a command, followed by a wait
931 * (aka, "programmaticDelay") and then a "read" request.
932 */
933 static int
aiptek_query(struct aiptek * aiptek,unsigned char command,unsigned char data)934 aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data)
935 {
936 const int sizeof_buf = 3 * sizeof(u8);
937 int ret;
938 u8 *buf;
939
940 buf = kmalloc(sizeof_buf, GFP_KERNEL);
941 if (!buf)
942 return -ENOMEM;
943
944 buf[0] = 2;
945 buf[1] = command;
946 buf[2] = data;
947
948 if (aiptek_command(aiptek, command, data) != 0) {
949 kfree(buf);
950 return -EIO;
951 }
952 msleep(aiptek->curSetting.programmableDelay);
953
954 if ((ret =
955 aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
956 dev_dbg(&aiptek->intf->dev,
957 "aiptek_query failed: returned 0x%02x 0x%02x 0x%02x\n",
958 buf[0], buf[1], buf[2]);
959 ret = -EIO;
960 } else {
961 ret = get_unaligned_le16(buf + 1);
962 }
963 kfree(buf);
964 return ret;
965 }
966
967 /***********************************************************************
968 * Program the tablet into either absolute or relative mode.
969 * We also get information about the tablet's size.
970 */
aiptek_program_tablet(struct aiptek * aiptek)971 static int aiptek_program_tablet(struct aiptek *aiptek)
972 {
973 int ret;
974 /* Execute Resolution500LPI */
975 if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0)
976 return ret;
977
978 /* Query getModelCode */
979 if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0)
980 return ret;
981 aiptek->features.modelCode = ret & 0xff;
982
983 /* Query getODMCode */
984 if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0)
985 return ret;
986 aiptek->features.odmCode = ret;
987
988 /* Query getFirmwareCode */
989 if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0)
990 return ret;
991 aiptek->features.firmwareCode = ret;
992
993 /* Query getXextension */
994 if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0)
995 return ret;
996 input_set_abs_params(aiptek->inputdev, ABS_X, 0, ret - 1, 0, 0);
997
998 /* Query getYextension */
999 if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0)
1000 return ret;
1001 input_set_abs_params(aiptek->inputdev, ABS_Y, 0, ret - 1, 0, 0);
1002
1003 /* Query getPressureLevels */
1004 if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0)
1005 return ret;
1006 input_set_abs_params(aiptek->inputdev, ABS_PRESSURE, 0, ret - 1, 0, 0);
1007
1008 /* Depending on whether we are in absolute or relative mode, we will
1009 * do a switchToTablet(absolute) or switchToMouse(relative) command.
1010 */
1011 if (aiptek->curSetting.coordinateMode ==
1012 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
1013 /* Execute switchToTablet */
1014 if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) {
1015 return ret;
1016 }
1017 } else {
1018 /* Execute switchToMouse */
1019 if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) {
1020 return ret;
1021 }
1022 }
1023
1024 /* Enable the macro keys */
1025 if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0)
1026 return ret;
1027 #if 0
1028 /* Execute FilterOn */
1029 if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0)
1030 return ret;
1031 #endif
1032
1033 /* Execute AutoGainOn */
1034 if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0)
1035 return ret;
1036
1037 /* Reset the eventCount, so we track events from last (re)programming
1038 */
1039 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA;
1040 aiptek->eventCount = 0;
1041
1042 return 0;
1043 }
1044
1045 /***********************************************************************
1046 * Sysfs functions. Sysfs prefers that individually-tunable parameters
1047 * exist in their separate pseudo-files. Summary data that is immutable
1048 * may exist in a singular file so long as you don't define a writeable
1049 * interface.
1050 */
1051
1052 /***********************************************************************
1053 * support the 'size' file -- display support
1054 */
show_tabletSize(struct device * dev,struct device_attribute * attr,char * buf)1055 static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf)
1056 {
1057 struct aiptek *aiptek = dev_get_drvdata(dev);
1058
1059 return snprintf(buf, PAGE_SIZE, "%dx%d\n",
1060 input_abs_get_max(aiptek->inputdev, ABS_X) + 1,
1061 input_abs_get_max(aiptek->inputdev, ABS_Y) + 1);
1062 }
1063
1064 /* These structs define the sysfs files, param #1 is the name of the
1065 * file, param 2 is the file permissions, param 3 & 4 are to the
1066 * output generator and input parser routines. Absence of a routine is
1067 * permitted -- it only means can't either 'cat' the file, or send data
1068 * to it.
1069 */
1070 static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL);
1071
1072 /***********************************************************************
1073 * support routines for the 'pointer_mode' file. Note that this file
1074 * both displays current setting and allows reprogramming.
1075 */
1076 static struct aiptek_map pointer_mode_map[] = {
1077 { "stylus", AIPTEK_POINTER_ONLY_STYLUS_MODE },
1078 { "mouse", AIPTEK_POINTER_ONLY_MOUSE_MODE },
1079 { "either", AIPTEK_POINTER_EITHER_MODE },
1080 { NULL, AIPTEK_INVALID_VALUE }
1081 };
1082
show_tabletPointerMode(struct device * dev,struct device_attribute * attr,char * buf)1083 static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf)
1084 {
1085 struct aiptek *aiptek = dev_get_drvdata(dev);
1086
1087 return snprintf(buf, PAGE_SIZE, "%s\n",
1088 map_val_to_str(pointer_mode_map,
1089 aiptek->curSetting.pointerMode));
1090 }
1091
1092 static ssize_t
store_tabletPointerMode(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1093 store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1094 {
1095 struct aiptek *aiptek = dev_get_drvdata(dev);
1096 int new_mode = map_str_to_val(pointer_mode_map, buf, count);
1097
1098 if (new_mode == AIPTEK_INVALID_VALUE)
1099 return -EINVAL;
1100
1101 aiptek->newSetting.pointerMode = new_mode;
1102 return count;
1103 }
1104
1105 static DEVICE_ATTR(pointer_mode,
1106 S_IRUGO | S_IWUSR,
1107 show_tabletPointerMode, store_tabletPointerMode);
1108
1109 /***********************************************************************
1110 * support routines for the 'coordinate_mode' file. Note that this file
1111 * both displays current setting and allows reprogramming.
1112 */
1113
1114 static struct aiptek_map coordinate_mode_map[] = {
1115 { "absolute", AIPTEK_COORDINATE_ABSOLUTE_MODE },
1116 { "relative", AIPTEK_COORDINATE_RELATIVE_MODE },
1117 { NULL, AIPTEK_INVALID_VALUE }
1118 };
1119
show_tabletCoordinateMode(struct device * dev,struct device_attribute * attr,char * buf)1120 static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf)
1121 {
1122 struct aiptek *aiptek = dev_get_drvdata(dev);
1123
1124 return snprintf(buf, PAGE_SIZE, "%s\n",
1125 map_val_to_str(coordinate_mode_map,
1126 aiptek->curSetting.coordinateMode));
1127 }
1128
1129 static ssize_t
store_tabletCoordinateMode(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1130 store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1131 {
1132 struct aiptek *aiptek = dev_get_drvdata(dev);
1133 int new_mode = map_str_to_val(coordinate_mode_map, buf, count);
1134
1135 if (new_mode == AIPTEK_INVALID_VALUE)
1136 return -EINVAL;
1137
1138 aiptek->newSetting.coordinateMode = new_mode;
1139 return count;
1140 }
1141
1142 static DEVICE_ATTR(coordinate_mode,
1143 S_IRUGO | S_IWUSR,
1144 show_tabletCoordinateMode, store_tabletCoordinateMode);
1145
1146 /***********************************************************************
1147 * support routines for the 'tool_mode' file. Note that this file
1148 * both displays current setting and allows reprogramming.
1149 */
1150
1151 static struct aiptek_map tool_mode_map[] = {
1152 { "mouse", AIPTEK_TOOL_BUTTON_MOUSE_MODE },
1153 { "eraser", AIPTEK_TOOL_BUTTON_ERASER_MODE },
1154 { "pencil", AIPTEK_TOOL_BUTTON_PENCIL_MODE },
1155 { "pen", AIPTEK_TOOL_BUTTON_PEN_MODE },
1156 { "brush", AIPTEK_TOOL_BUTTON_BRUSH_MODE },
1157 { "airbrush", AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE },
1158 { "lens", AIPTEK_TOOL_BUTTON_LENS_MODE },
1159 { NULL, AIPTEK_INVALID_VALUE }
1160 };
1161
show_tabletToolMode(struct device * dev,struct device_attribute * attr,char * buf)1162 static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf)
1163 {
1164 struct aiptek *aiptek = dev_get_drvdata(dev);
1165
1166 return snprintf(buf, PAGE_SIZE, "%s\n",
1167 map_val_to_str(tool_mode_map,
1168 aiptek->curSetting.toolMode));
1169 }
1170
1171 static ssize_t
store_tabletToolMode(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1172 store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1173 {
1174 struct aiptek *aiptek = dev_get_drvdata(dev);
1175 int new_mode = map_str_to_val(tool_mode_map, buf, count);
1176
1177 if (new_mode == AIPTEK_INVALID_VALUE)
1178 return -EINVAL;
1179
1180 aiptek->newSetting.toolMode = new_mode;
1181 return count;
1182 }
1183
1184 static DEVICE_ATTR(tool_mode,
1185 S_IRUGO | S_IWUSR,
1186 show_tabletToolMode, store_tabletToolMode);
1187
1188 /***********************************************************************
1189 * support routines for the 'xtilt' file. Note that this file
1190 * both displays current setting and allows reprogramming.
1191 */
show_tabletXtilt(struct device * dev,struct device_attribute * attr,char * buf)1192 static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf)
1193 {
1194 struct aiptek *aiptek = dev_get_drvdata(dev);
1195
1196 if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
1197 return snprintf(buf, PAGE_SIZE, "disable\n");
1198 } else {
1199 return snprintf(buf, PAGE_SIZE, "%d\n",
1200 aiptek->curSetting.xTilt);
1201 }
1202 }
1203
1204 static ssize_t
store_tabletXtilt(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1205 store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1206 {
1207 struct aiptek *aiptek = dev_get_drvdata(dev);
1208 int x;
1209
1210 if (kstrtoint(buf, 10, &x)) {
1211 size_t len = buf[count - 1] == '\n' ? count - 1 : count;
1212
1213 if (strncmp(buf, "disable", len))
1214 return -EINVAL;
1215
1216 aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
1217 } else {
1218 if (x < AIPTEK_TILT_MIN || x > AIPTEK_TILT_MAX)
1219 return -EINVAL;
1220
1221 aiptek->newSetting.xTilt = x;
1222 }
1223
1224 return count;
1225 }
1226
1227 static DEVICE_ATTR(xtilt,
1228 S_IRUGO | S_IWUSR, show_tabletXtilt, store_tabletXtilt);
1229
1230 /***********************************************************************
1231 * support routines for the 'ytilt' file. Note that this file
1232 * both displays current setting and allows reprogramming.
1233 */
show_tabletYtilt(struct device * dev,struct device_attribute * attr,char * buf)1234 static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf)
1235 {
1236 struct aiptek *aiptek = dev_get_drvdata(dev);
1237
1238 if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
1239 return snprintf(buf, PAGE_SIZE, "disable\n");
1240 } else {
1241 return snprintf(buf, PAGE_SIZE, "%d\n",
1242 aiptek->curSetting.yTilt);
1243 }
1244 }
1245
1246 static ssize_t
store_tabletYtilt(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1247 store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1248 {
1249 struct aiptek *aiptek = dev_get_drvdata(dev);
1250 int y;
1251
1252 if (kstrtoint(buf, 10, &y)) {
1253 size_t len = buf[count - 1] == '\n' ? count - 1 : count;
1254
1255 if (strncmp(buf, "disable", len))
1256 return -EINVAL;
1257
1258 aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
1259 } else {
1260 if (y < AIPTEK_TILT_MIN || y > AIPTEK_TILT_MAX)
1261 return -EINVAL;
1262
1263 aiptek->newSetting.yTilt = y;
1264 }
1265
1266 return count;
1267 }
1268
1269 static DEVICE_ATTR(ytilt,
1270 S_IRUGO | S_IWUSR, show_tabletYtilt, store_tabletYtilt);
1271
1272 /***********************************************************************
1273 * support routines for the 'jitter' file. Note that this file
1274 * both displays current setting and allows reprogramming.
1275 */
show_tabletJitterDelay(struct device * dev,struct device_attribute * attr,char * buf)1276 static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf)
1277 {
1278 struct aiptek *aiptek = dev_get_drvdata(dev);
1279
1280 return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay);
1281 }
1282
1283 static ssize_t
store_tabletJitterDelay(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1284 store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1285 {
1286 struct aiptek *aiptek = dev_get_drvdata(dev);
1287 int err, j;
1288
1289 err = kstrtoint(buf, 10, &j);
1290 if (err)
1291 return err;
1292
1293 aiptek->newSetting.jitterDelay = j;
1294 return count;
1295 }
1296
1297 static DEVICE_ATTR(jitter,
1298 S_IRUGO | S_IWUSR,
1299 show_tabletJitterDelay, store_tabletJitterDelay);
1300
1301 /***********************************************************************
1302 * support routines for the 'delay' file. Note that this file
1303 * both displays current setting and allows reprogramming.
1304 */
show_tabletProgrammableDelay(struct device * dev,struct device_attribute * attr,char * buf)1305 static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf)
1306 {
1307 struct aiptek *aiptek = dev_get_drvdata(dev);
1308
1309 return snprintf(buf, PAGE_SIZE, "%d\n",
1310 aiptek->curSetting.programmableDelay);
1311 }
1312
1313 static ssize_t
store_tabletProgrammableDelay(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1314 store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1315 {
1316 struct aiptek *aiptek = dev_get_drvdata(dev);
1317 int err, d;
1318
1319 err = kstrtoint(buf, 10, &d);
1320 if (err)
1321 return err;
1322
1323 aiptek->newSetting.programmableDelay = d;
1324 return count;
1325 }
1326
1327 static DEVICE_ATTR(delay,
1328 S_IRUGO | S_IWUSR,
1329 show_tabletProgrammableDelay, store_tabletProgrammableDelay);
1330
1331 /***********************************************************************
1332 * support routines for the 'event_count' file. Note that this file
1333 * only displays current setting.
1334 */
show_tabletEventsReceived(struct device * dev,struct device_attribute * attr,char * buf)1335 static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf)
1336 {
1337 struct aiptek *aiptek = dev_get_drvdata(dev);
1338
1339 return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount);
1340 }
1341
1342 static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL);
1343
1344 /***********************************************************************
1345 * support routines for the 'diagnostic' file. Note that this file
1346 * only displays current setting.
1347 */
show_tabletDiagnosticMessage(struct device * dev,struct device_attribute * attr,char * buf)1348 static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf)
1349 {
1350 struct aiptek *aiptek = dev_get_drvdata(dev);
1351 char *retMsg;
1352
1353 switch (aiptek->diagnostic) {
1354 case AIPTEK_DIAGNOSTIC_NA:
1355 retMsg = "no errors\n";
1356 break;
1357
1358 case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE:
1359 retMsg = "Error: receiving relative reports\n";
1360 break;
1361
1362 case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE:
1363 retMsg = "Error: receiving absolute reports\n";
1364 break;
1365
1366 case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED:
1367 if (aiptek->curSetting.pointerMode ==
1368 AIPTEK_POINTER_ONLY_MOUSE_MODE) {
1369 retMsg = "Error: receiving stylus reports\n";
1370 } else {
1371 retMsg = "Error: receiving mouse reports\n";
1372 }
1373 break;
1374
1375 default:
1376 return 0;
1377 }
1378 return snprintf(buf, PAGE_SIZE, retMsg);
1379 }
1380
1381 static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL);
1382
1383 /***********************************************************************
1384 * support routines for the 'stylus_upper' file. Note that this file
1385 * both displays current setting and allows for setting changing.
1386 */
1387
1388 static struct aiptek_map stylus_button_map[] = {
1389 { "upper", AIPTEK_STYLUS_UPPER_BUTTON },
1390 { "lower", AIPTEK_STYLUS_LOWER_BUTTON },
1391 { NULL, AIPTEK_INVALID_VALUE }
1392 };
1393
show_tabletStylusUpper(struct device * dev,struct device_attribute * attr,char * buf)1394 static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf)
1395 {
1396 struct aiptek *aiptek = dev_get_drvdata(dev);
1397
1398 return snprintf(buf, PAGE_SIZE, "%s\n",
1399 map_val_to_str(stylus_button_map,
1400 aiptek->curSetting.stylusButtonUpper));
1401 }
1402
1403 static ssize_t
store_tabletStylusUpper(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1404 store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1405 {
1406 struct aiptek *aiptek = dev_get_drvdata(dev);
1407 int new_button = map_str_to_val(stylus_button_map, buf, count);
1408
1409 if (new_button == AIPTEK_INVALID_VALUE)
1410 return -EINVAL;
1411
1412 aiptek->newSetting.stylusButtonUpper = new_button;
1413 return count;
1414 }
1415
1416 static DEVICE_ATTR(stylus_upper,
1417 S_IRUGO | S_IWUSR,
1418 show_tabletStylusUpper, store_tabletStylusUpper);
1419
1420 /***********************************************************************
1421 * support routines for the 'stylus_lower' file. Note that this file
1422 * both displays current setting and allows for setting changing.
1423 */
1424
show_tabletStylusLower(struct device * dev,struct device_attribute * attr,char * buf)1425 static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf)
1426 {
1427 struct aiptek *aiptek = dev_get_drvdata(dev);
1428
1429 return snprintf(buf, PAGE_SIZE, "%s\n",
1430 map_val_to_str(stylus_button_map,
1431 aiptek->curSetting.stylusButtonLower));
1432 }
1433
1434 static ssize_t
store_tabletStylusLower(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1435 store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1436 {
1437 struct aiptek *aiptek = dev_get_drvdata(dev);
1438 int new_button = map_str_to_val(stylus_button_map, buf, count);
1439
1440 if (new_button == AIPTEK_INVALID_VALUE)
1441 return -EINVAL;
1442
1443 aiptek->newSetting.stylusButtonLower = new_button;
1444 return count;
1445 }
1446
1447 static DEVICE_ATTR(stylus_lower,
1448 S_IRUGO | S_IWUSR,
1449 show_tabletStylusLower, store_tabletStylusLower);
1450
1451 /***********************************************************************
1452 * support routines for the 'mouse_left' file. Note that this file
1453 * both displays current setting and allows for setting changing.
1454 */
1455
1456 static struct aiptek_map mouse_button_map[] = {
1457 { "left", AIPTEK_MOUSE_LEFT_BUTTON },
1458 { "middle", AIPTEK_MOUSE_MIDDLE_BUTTON },
1459 { "right", AIPTEK_MOUSE_RIGHT_BUTTON },
1460 { NULL, AIPTEK_INVALID_VALUE }
1461 };
1462
show_tabletMouseLeft(struct device * dev,struct device_attribute * attr,char * buf)1463 static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf)
1464 {
1465 struct aiptek *aiptek = dev_get_drvdata(dev);
1466
1467 return snprintf(buf, PAGE_SIZE, "%s\n",
1468 map_val_to_str(mouse_button_map,
1469 aiptek->curSetting.mouseButtonLeft));
1470 }
1471
1472 static ssize_t
store_tabletMouseLeft(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1473 store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1474 {
1475 struct aiptek *aiptek = dev_get_drvdata(dev);
1476 int new_button = map_str_to_val(mouse_button_map, buf, count);
1477
1478 if (new_button == AIPTEK_INVALID_VALUE)
1479 return -EINVAL;
1480
1481 aiptek->newSetting.mouseButtonLeft = new_button;
1482 return count;
1483 }
1484
1485 static DEVICE_ATTR(mouse_left,
1486 S_IRUGO | S_IWUSR,
1487 show_tabletMouseLeft, store_tabletMouseLeft);
1488
1489 /***********************************************************************
1490 * support routines for the 'mouse_middle' file. Note that this file
1491 * both displays current setting and allows for setting changing.
1492 */
show_tabletMouseMiddle(struct device * dev,struct device_attribute * attr,char * buf)1493 static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf)
1494 {
1495 struct aiptek *aiptek = dev_get_drvdata(dev);
1496
1497 return snprintf(buf, PAGE_SIZE, "%s\n",
1498 map_val_to_str(mouse_button_map,
1499 aiptek->curSetting.mouseButtonMiddle));
1500 }
1501
1502 static ssize_t
store_tabletMouseMiddle(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1503 store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1504 {
1505 struct aiptek *aiptek = dev_get_drvdata(dev);
1506 int new_button = map_str_to_val(mouse_button_map, buf, count);
1507
1508 if (new_button == AIPTEK_INVALID_VALUE)
1509 return -EINVAL;
1510
1511 aiptek->newSetting.mouseButtonMiddle = new_button;
1512 return count;
1513 }
1514
1515 static DEVICE_ATTR(mouse_middle,
1516 S_IRUGO | S_IWUSR,
1517 show_tabletMouseMiddle, store_tabletMouseMiddle);
1518
1519 /***********************************************************************
1520 * support routines for the 'mouse_right' file. Note that this file
1521 * both displays current setting and allows for setting changing.
1522 */
show_tabletMouseRight(struct device * dev,struct device_attribute * attr,char * buf)1523 static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf)
1524 {
1525 struct aiptek *aiptek = dev_get_drvdata(dev);
1526
1527 return snprintf(buf, PAGE_SIZE, "%s\n",
1528 map_val_to_str(mouse_button_map,
1529 aiptek->curSetting.mouseButtonRight));
1530 }
1531
1532 static ssize_t
store_tabletMouseRight(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1533 store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1534 {
1535 struct aiptek *aiptek = dev_get_drvdata(dev);
1536 int new_button = map_str_to_val(mouse_button_map, buf, count);
1537
1538 if (new_button == AIPTEK_INVALID_VALUE)
1539 return -EINVAL;
1540
1541 aiptek->newSetting.mouseButtonRight = new_button;
1542 return count;
1543 }
1544
1545 static DEVICE_ATTR(mouse_right,
1546 S_IRUGO | S_IWUSR,
1547 show_tabletMouseRight, store_tabletMouseRight);
1548
1549 /***********************************************************************
1550 * support routines for the 'wheel' file. Note that this file
1551 * both displays current setting and allows for setting changing.
1552 */
show_tabletWheel(struct device * dev,struct device_attribute * attr,char * buf)1553 static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf)
1554 {
1555 struct aiptek *aiptek = dev_get_drvdata(dev);
1556
1557 if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
1558 return snprintf(buf, PAGE_SIZE, "disable\n");
1559 } else {
1560 return snprintf(buf, PAGE_SIZE, "%d\n",
1561 aiptek->curSetting.wheel);
1562 }
1563 }
1564
1565 static ssize_t
store_tabletWheel(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1566 store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1567 {
1568 struct aiptek *aiptek = dev_get_drvdata(dev);
1569 int err, w;
1570
1571 err = kstrtoint(buf, 10, &w);
1572 if (err)
1573 return err;
1574
1575 aiptek->newSetting.wheel = w;
1576 return count;
1577 }
1578
1579 static DEVICE_ATTR(wheel,
1580 S_IRUGO | S_IWUSR, show_tabletWheel, store_tabletWheel);
1581
1582 /***********************************************************************
1583 * support routines for the 'execute' file. Note that this file
1584 * both displays current setting and allows for setting changing.
1585 */
show_tabletExecute(struct device * dev,struct device_attribute * attr,char * buf)1586 static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf)
1587 {
1588 /* There is nothing useful to display, so a one-line manual
1589 * is in order...
1590 */
1591 return snprintf(buf, PAGE_SIZE,
1592 "Write anything to this file to program your tablet.\n");
1593 }
1594
1595 static ssize_t
store_tabletExecute(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1596 store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1597 {
1598 struct aiptek *aiptek = dev_get_drvdata(dev);
1599
1600 /* We do not care what you write to this file. Merely the action
1601 * of writing to this file triggers a tablet reprogramming.
1602 */
1603 memcpy(&aiptek->curSetting, &aiptek->newSetting,
1604 sizeof(struct aiptek_settings));
1605
1606 if (aiptek_program_tablet(aiptek) < 0)
1607 return -EIO;
1608
1609 return count;
1610 }
1611
1612 static DEVICE_ATTR(execute,
1613 S_IRUGO | S_IWUSR, show_tabletExecute, store_tabletExecute);
1614
1615 /***********************************************************************
1616 * support routines for the 'odm_code' file. Note that this file
1617 * only displays current setting.
1618 */
show_tabletODMCode(struct device * dev,struct device_attribute * attr,char * buf)1619 static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf)
1620 {
1621 struct aiptek *aiptek = dev_get_drvdata(dev);
1622
1623 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode);
1624 }
1625
1626 static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL);
1627
1628 /***********************************************************************
1629 * support routines for the 'model_code' file. Note that this file
1630 * only displays current setting.
1631 */
show_tabletModelCode(struct device * dev,struct device_attribute * attr,char * buf)1632 static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf)
1633 {
1634 struct aiptek *aiptek = dev_get_drvdata(dev);
1635
1636 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode);
1637 }
1638
1639 static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL);
1640
1641 /***********************************************************************
1642 * support routines for the 'firmware_code' file. Note that this file
1643 * only displays current setting.
1644 */
show_firmwareCode(struct device * dev,struct device_attribute * attr,char * buf)1645 static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf)
1646 {
1647 struct aiptek *aiptek = dev_get_drvdata(dev);
1648
1649 return snprintf(buf, PAGE_SIZE, "%04x\n",
1650 aiptek->features.firmwareCode);
1651 }
1652
1653 static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
1654
1655 static struct attribute *aiptek_attributes[] = {
1656 &dev_attr_size.attr,
1657 &dev_attr_pointer_mode.attr,
1658 &dev_attr_coordinate_mode.attr,
1659 &dev_attr_tool_mode.attr,
1660 &dev_attr_xtilt.attr,
1661 &dev_attr_ytilt.attr,
1662 &dev_attr_jitter.attr,
1663 &dev_attr_delay.attr,
1664 &dev_attr_event_count.attr,
1665 &dev_attr_diagnostic.attr,
1666 &dev_attr_odm_code.attr,
1667 &dev_attr_model_code.attr,
1668 &dev_attr_firmware_code.attr,
1669 &dev_attr_stylus_lower.attr,
1670 &dev_attr_stylus_upper.attr,
1671 &dev_attr_mouse_left.attr,
1672 &dev_attr_mouse_middle.attr,
1673 &dev_attr_mouse_right.attr,
1674 &dev_attr_wheel.attr,
1675 &dev_attr_execute.attr,
1676 NULL
1677 };
1678
1679 static struct attribute_group aiptek_attribute_group = {
1680 .attrs = aiptek_attributes,
1681 };
1682
1683 /***********************************************************************
1684 * This routine is called when a tablet has been identified. It basically
1685 * sets up the tablet and the driver's internal structures.
1686 */
1687 static int
aiptek_probe(struct usb_interface * intf,const struct usb_device_id * id)1688 aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
1689 {
1690 struct usb_device *usbdev = interface_to_usbdev(intf);
1691 struct usb_endpoint_descriptor *endpoint;
1692 struct aiptek *aiptek;
1693 struct input_dev *inputdev;
1694 int i;
1695 int speeds[] = { 0,
1696 AIPTEK_PROGRAMMABLE_DELAY_50,
1697 AIPTEK_PROGRAMMABLE_DELAY_400,
1698 AIPTEK_PROGRAMMABLE_DELAY_25,
1699 AIPTEK_PROGRAMMABLE_DELAY_100,
1700 AIPTEK_PROGRAMMABLE_DELAY_200,
1701 AIPTEK_PROGRAMMABLE_DELAY_300
1702 };
1703 int err = -ENOMEM;
1704
1705 /* programmableDelay is where the command-line specified
1706 * delay is kept. We make it the first element of speeds[],
1707 * so therefore, your override speed is tried first, then the
1708 * remainder. Note that the default value of 400ms will be tried
1709 * if you do not specify any command line parameter.
1710 */
1711 speeds[0] = programmableDelay;
1712
1713 aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL);
1714 inputdev = input_allocate_device();
1715 if (!aiptek || !inputdev) {
1716 dev_warn(&intf->dev,
1717 "cannot allocate memory or input device\n");
1718 goto fail1;
1719 }
1720
1721 aiptek->data = usb_alloc_coherent(usbdev, AIPTEK_PACKET_LENGTH,
1722 GFP_ATOMIC, &aiptek->data_dma);
1723 if (!aiptek->data) {
1724 dev_warn(&intf->dev, "cannot allocate usb buffer\n");
1725 goto fail1;
1726 }
1727
1728 aiptek->urb = usb_alloc_urb(0, GFP_KERNEL);
1729 if (!aiptek->urb) {
1730 dev_warn(&intf->dev, "cannot allocate urb\n");
1731 goto fail2;
1732 }
1733
1734 aiptek->inputdev = inputdev;
1735 aiptek->intf = intf;
1736 aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber;
1737 aiptek->inDelay = 0;
1738 aiptek->endDelay = 0;
1739 aiptek->previousJitterable = 0;
1740 aiptek->lastMacro = -1;
1741
1742 /* Set up the curSettings struct. Said struct contains the current
1743 * programmable parameters. The newSetting struct contains changes
1744 * the user makes to the settings via the sysfs interface. Those
1745 * changes are not "committed" to curSettings until the user
1746 * writes to the sysfs/.../execute file.
1747 */
1748 aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
1749 aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE;
1750 aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
1751 aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE;
1752 aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE;
1753 aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
1754 aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON;
1755 aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
1756 aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON;
1757 aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON;
1758 aiptek->curSetting.jitterDelay = jitterDelay;
1759 aiptek->curSetting.programmableDelay = programmableDelay;
1760
1761 /* Both structs should have equivalent settings
1762 */
1763 aiptek->newSetting = aiptek->curSetting;
1764
1765 /* Determine the usb devices' physical path.
1766 * Asketh not why we always pretend we're using "../input0",
1767 * but I suspect this will have to be refactored one
1768 * day if a single USB device can be a keyboard & a mouse
1769 * & a tablet, and the inputX number actually will tell
1770 * us something...
1771 */
1772 usb_make_path(usbdev, aiptek->features.usbPath,
1773 sizeof(aiptek->features.usbPath));
1774 strlcat(aiptek->features.usbPath, "/input0",
1775 sizeof(aiptek->features.usbPath));
1776
1777 /* Set up client data, pointers to open and close routines
1778 * for the input device.
1779 */
1780 inputdev->name = "Aiptek";
1781 inputdev->phys = aiptek->features.usbPath;
1782 usb_to_input_id(usbdev, &inputdev->id);
1783 inputdev->dev.parent = &intf->dev;
1784
1785 input_set_drvdata(inputdev, aiptek);
1786
1787 inputdev->open = aiptek_open;
1788 inputdev->close = aiptek_close;
1789
1790 /* Now program the capacities of the tablet, in terms of being
1791 * an input device.
1792 */
1793 for (i = 0; i < ARRAY_SIZE(eventTypes); ++i)
1794 __set_bit(eventTypes[i], inputdev->evbit);
1795
1796 for (i = 0; i < ARRAY_SIZE(absEvents); ++i)
1797 __set_bit(absEvents[i], inputdev->absbit);
1798
1799 for (i = 0; i < ARRAY_SIZE(relEvents); ++i)
1800 __set_bit(relEvents[i], inputdev->relbit);
1801
1802 __set_bit(MSC_SERIAL, inputdev->mscbit);
1803
1804 /* Set up key and button codes */
1805 for (i = 0; i < ARRAY_SIZE(buttonEvents); ++i)
1806 __set_bit(buttonEvents[i], inputdev->keybit);
1807
1808 for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i)
1809 __set_bit(macroKeyEvents[i], inputdev->keybit);
1810
1811 /*
1812 * Program the input device coordinate capacities. We do not yet
1813 * know what maximum X, Y, and Z values are, so we're putting fake
1814 * values in. Later, we'll ask the tablet to put in the correct
1815 * values.
1816 */
1817 input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0);
1818 input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0);
1819 input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0);
1820 input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1821 input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1822 input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
1823
1824 /* Verify that a device really has an endpoint */
1825 if (intf->altsetting[0].desc.bNumEndpoints < 1) {
1826 dev_err(&intf->dev,
1827 "interface has %d endpoints, but must have minimum 1\n",
1828 intf->altsetting[0].desc.bNumEndpoints);
1829 err = -EINVAL;
1830 goto fail3;
1831 }
1832 endpoint = &intf->altsetting[0].endpoint[0].desc;
1833
1834 /* Go set up our URB, which is called when the tablet receives
1835 * input.
1836 */
1837 usb_fill_int_urb(aiptek->urb,
1838 usbdev,
1839 usb_rcvintpipe(usbdev,
1840 endpoint->bEndpointAddress),
1841 aiptek->data, 8, aiptek_irq, aiptek,
1842 endpoint->bInterval);
1843
1844 aiptek->urb->transfer_dma = aiptek->data_dma;
1845 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1846
1847 /* Program the tablet. This sets the tablet up in the mode
1848 * specified in newSetting, and also queries the tablet's
1849 * physical capacities.
1850 *
1851 * Sanity check: if a tablet doesn't like the slow programmatic
1852 * delay, we often get sizes of 0x0. Let's use that as an indicator
1853 * to try faster delays, up to 25 ms. If that logic fails, well, you'll
1854 * have to explain to us how your tablet thinks it's 0x0, and yet that's
1855 * not an error :-)
1856 */
1857
1858 for (i = 0; i < ARRAY_SIZE(speeds); ++i) {
1859 aiptek->curSetting.programmableDelay = speeds[i];
1860 (void)aiptek_program_tablet(aiptek);
1861 if (input_abs_get_max(aiptek->inputdev, ABS_X) > 0) {
1862 dev_info(&intf->dev,
1863 "Aiptek using %d ms programming speed\n",
1864 aiptek->curSetting.programmableDelay);
1865 break;
1866 }
1867 }
1868
1869 /* Murphy says that some day someone will have a tablet that fails the
1870 above test. That's you, Frederic Rodrigo */
1871 if (i == ARRAY_SIZE(speeds)) {
1872 dev_info(&intf->dev,
1873 "Aiptek tried all speeds, no sane response\n");
1874 err = -EINVAL;
1875 goto fail3;
1876 }
1877
1878 /* Associate this driver's struct with the usb interface.
1879 */
1880 usb_set_intfdata(intf, aiptek);
1881
1882 /* Set up the sysfs files
1883 */
1884 err = sysfs_create_group(&intf->dev.kobj, &aiptek_attribute_group);
1885 if (err) {
1886 dev_warn(&intf->dev, "cannot create sysfs group err: %d\n",
1887 err);
1888 goto fail3;
1889 }
1890
1891 /* Register the tablet as an Input Device
1892 */
1893 err = input_register_device(aiptek->inputdev);
1894 if (err) {
1895 dev_warn(&intf->dev,
1896 "input_register_device returned err: %d\n", err);
1897 goto fail4;
1898 }
1899 return 0;
1900
1901 fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1902 fail3: usb_free_urb(aiptek->urb);
1903 fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
1904 aiptek->data_dma);
1905 fail1: usb_set_intfdata(intf, NULL);
1906 input_free_device(inputdev);
1907 kfree(aiptek);
1908 return err;
1909 }
1910
1911 /***********************************************************************
1912 * Deal with tablet disconnecting from the system.
1913 */
aiptek_disconnect(struct usb_interface * intf)1914 static void aiptek_disconnect(struct usb_interface *intf)
1915 {
1916 struct aiptek *aiptek = usb_get_intfdata(intf);
1917
1918 /* Disassociate driver's struct with usb interface
1919 */
1920 usb_set_intfdata(intf, NULL);
1921 if (aiptek != NULL) {
1922 /* Free & unhook everything from the system.
1923 */
1924 usb_kill_urb(aiptek->urb);
1925 input_unregister_device(aiptek->inputdev);
1926 sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1927 usb_free_urb(aiptek->urb);
1928 usb_free_coherent(interface_to_usbdev(intf),
1929 AIPTEK_PACKET_LENGTH,
1930 aiptek->data, aiptek->data_dma);
1931 kfree(aiptek);
1932 }
1933 }
1934
1935 static struct usb_driver aiptek_driver = {
1936 .name = "aiptek",
1937 .probe = aiptek_probe,
1938 .disconnect = aiptek_disconnect,
1939 .id_table = aiptek_ids,
1940 };
1941
1942 module_usb_driver(aiptek_driver);
1943
1944 MODULE_AUTHOR(DRIVER_AUTHOR);
1945 MODULE_DESCRIPTION(DRIVER_DESC);
1946 MODULE_LICENSE("GPL");
1947
1948 module_param(programmableDelay, int, 0);
1949 MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming");
1950 module_param(jitterDelay, int, 0);
1951 MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay");
1952