projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'next' into for-linus
[deliverable/linux.git] / drivers / input / tablet / aiptek.c
1 /*
2 * Native support for the Aiptek HyperPen USB Tablets
3 * (4000U/5000U/6000U/8000U/12000U)
4 *
5 * Copyright (c) 2001 Chris Atenasio <chris@crud.net>
6 * Copyright (c) 2002-2004 Bryan W. Headley <bwheadley@earthlink.net>
7 *
8 * based on wacom.c by
9 * Vojtech Pavlik <vojtech@suse.cz>
10 * Andreas Bach Aaen <abach@stofanet.dk>
11 * Clifford Wolf <clifford@clifford.at>
12 * Sam Mosel <sam.mosel@computer.org>
13 * James E. Blair <corvus@gnu.org>
14 * Daniel Egger <egger@suse.de>
15 *
16 * Many thanks to Oliver Kuechemann for his support.
17 *
18 * ChangeLog:
19 * v0.1 - Initial release
20 * v0.2 - Hack to get around fake event 28's. (Bryan W. Headley)
21 * v0.3 - Make URB dynamic (Bryan W. Headley, Jun-8-2002)
22 * Released to Linux 2.4.19 and 2.5.x
23 * v0.4 - Rewrote substantial portions of the code to deal with
24 * corrected control sequences, timing, dynamic configuration,
25 * support of 6000U - 12000U, procfs, and macro key support
26 * (Jan-1-2003 - Feb-5-2003, Bryan W. Headley)
27 * v1.0 - Added support for diagnostic messages, count of messages
28 * received from URB - Mar-8-2003, Bryan W. Headley
29 * v1.1 - added support for tablet resolution, changed DV and proximity
30 * some corrections - Jun-22-2003, martin schneebacher
31 * - Added support for the sysfs interface, deprecating the
32 * procfs interface for 2.5.x kernel. Also added support for
33 * Wheel command. Bryan W. Headley July-15-2003.
34 * v1.2 - Reworked jitter timer as a kernel thread.
35 * Bryan W. Headley November-28-2003/Jan-10-2004.
36 * v1.3 - Repaired issue of kernel thread going nuts on single-processor
37 * machines, introduced programmableDelay as a command line
38 * parameter. Feb 7 2004, Bryan W. Headley.
39 * v1.4 - Re-wire jitter so it does not require a thread. Courtesy of
40 * Rene van Paassen. Added reporting of physical pointer device
41 * (e.g., stylus, mouse in reports 2, 3, 4, 5. We don't know
42 * for reports 1, 6.)
43 * what physical device reports for reports 1, 6.) Also enabled
44 * MOUSE and LENS tool button modes. Renamed "rubber" to "eraser".
45 * Feb 20, 2004, Bryan W. Headley.
46 * v1.5 - Added previousJitterable, so we don't do jitter delay when the
47 * user is holding a button down for periods of time.
48 *
49 * NOTE:
50 * This kernel driver is augmented by the "Aiptek" XFree86 input
51 * driver for your X server, as well as the Gaiptek GUI Front-end
52 * "Tablet Manager".
53 * These three products are highly interactive with one another,
54 * so therefore it's easier to document them all as one subsystem.
55 * Please visit the project's "home page", located at,
56 * http://aiptektablet.sourceforge.net.
57 *
58 * This program is free software; you can redistribute it and/or modify
59 * it under the terms of the GNU General Public License as published by
60 * the Free Software Foundation; either version 2 of the License, or
61 * (at your option) any later version.
62 *
63 * This program is distributed in the hope that it will be useful,
64 * but WITHOUT ANY WARRANTY; without even the implied warranty of
65 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
66 * GNU General Public License for more details.
67 *
68 * You should have received a copy of the GNU General Public License
69 * along with this program; if not, write to the Free Software
70 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
71 */
72
73 #include <linux/jiffies.h>
74 #include <linux/kernel.h>
75 #include <linux/slab.h>
76 #include <linux/module.h>
77 #include <linux/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_device *usbdev; /* usb device struct */
311 struct usb_interface *intf; /* usb interface 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 */
323
324 int lastMacro; /* macro key to reset */
325 int previousToolMode; /* pen, pencil, brush, etc. tool */
326 unsigned char *data; /* incoming packet data */
327 };
328
329 static const int eventTypes[] = {
330 EV_KEY, EV_ABS, EV_REL, EV_MSC,
331 };
332
333 static const int absEvents[] = {
334 ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y,
335 ABS_WHEEL, ABS_MISC,
336 };
337
338 static const int relEvents[] = {
339 REL_X, REL_Y, REL_WHEEL,
340 };
341
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,
347 };
348
349 /*
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.
353 */
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
361 };
362
363 /***********************************************************************
364 * Map values to strings and back. Every map should have the following
365 * as its last element: { NULL, AIPTEK_INVALID_VALUE }.
366 */
367 #define AIPTEK_INVALID_VALUE -1
368
369 struct aiptek_map {
370 const char *string;
371 int value;
372 };
373
374 static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t count)
375 {
376 const struct aiptek_map *p;
377
378 if (str[count - 1] == '\n')
379 count--;
380
381 for (p = map; p->string; p++)
382 if (!strncmp(str, p->string, count))
383 return p->value;
384
385 return AIPTEK_INVALID_VALUE;
386 }
387
388 static const char *map_val_to_str(const struct aiptek_map *map, int val)
389 {
390 const struct aiptek_map *p;
391
392 for (p = map; p->value != AIPTEK_INVALID_VALUE; p++)
393 if (val == p->value)
394 return p->string;
395
396 return "unknown";
397 }
398
399 /***********************************************************************
400 * aiptek_irq can receive one of six potential reports.
401 * The documentation for each is in the body of the function.
402 *
403 * The tablet reports on several attributes per invocation of
404 * aiptek_irq. Because the Linux Input Event system allows the
405 * transmission of ONE attribute per input_report_xxx() call,
406 * collation has to be done on the other end to reconstitute
407 * a complete tablet report. Further, the number of Input Event reports
408 * submitted varies, depending on what USB report type, and circumstance.
409 * To deal with this, EV_MSC is used to indicate an 'end-of-report'
410 * message. This has been an undocumented convention understood by the kernel
411 * tablet driver and clients such as gpm and XFree86's tablet drivers.
412 *
413 * Of the information received from the tablet, the one piece I
414 * cannot transmit is the proximity bit (without resorting to an EV_MSC
415 * convention above.) I therefore have taken over REL_MISC and ABS_MISC
416 * (for relative and absolute reports, respectively) for communicating
417 * Proximity. Why two events? I thought it interesting to know if the
418 * Proximity event occurred while the tablet was in absolute or relative
419 * mode.
420 * Update: REL_MISC proved not to be such a good idea. With REL_MISC you
421 * get an event transmitted each time. ABS_MISC works better, since it
422 * can be set and re-set. Thus, only using ABS_MISC from now on.
423 *
424 * Other tablets use the notion of a certain minimum stylus pressure
425 * to infer proximity. While that could have been done, that is yet
426 * another 'by convention' behavior, the documentation for which
427 * would be spread between two (or more) pieces of software.
428 *
429 * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and
430 * replaced with the input_sync() method (which emits EV_SYN.)
431 */
432
433 static void aiptek_irq(struct urb *urb)
434 {
435 struct aiptek *aiptek = urb->context;
436 unsigned char *data = aiptek->data;
437 struct input_dev *inputdev = aiptek->inputdev;
438 struct usb_interface *intf = aiptek->intf;
439 int jitterable = 0;
440 int retval, macro, x, y, z, left, right, middle, p, dv, tip, bs, pck;
441
442 switch (urb->status) {
443 case 0:
444 /* Success */
445 break;
446
447 case -ECONNRESET:
448 case -ENOENT:
449 case -ESHUTDOWN:
450 /* This urb is terminated, clean up */
451 dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",
452 __func__, urb->status);
453 return;
454
455 default:
456 dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",
457 __func__, urb->status);
458 goto exit;
459 }
460
461 /* See if we are in a delay loop -- throw out report if true.
462 */
463 if (aiptek->inDelay == 1 && time_after(aiptek->endDelay, jiffies)) {
464 goto exit;
465 }
466
467 aiptek->inDelay = 0;
468 aiptek->eventCount++;
469
470 /* Report 1 delivers relative coordinates with either a stylus
471 * or the mouse. You do not know, however, which input
472 * tool generated the event.
473 */
474 if (data[0] == 1) {
475 if (aiptek->curSetting.coordinateMode ==
476 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
477 aiptek->diagnostic =
478 AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE;
479 } else {
480 x = (signed char) data[2];
481 y = (signed char) data[3];
482
483 /* jitterable keeps track of whether any button has been pressed.
484 * We're also using it to remap the physical mouse button mask
485 * to pseudo-settings. (We don't specifically care about it's
486 * value after moving/transposing mouse button bitmasks, except
487 * that a non-zero value indicates that one or more
488 * mouse button was pressed.)
489 */
490 jitterable = data[1] & 0x07;
491
492 left = (data[1] & aiptek->curSetting.mouseButtonLeft >> 2) != 0 ? 1 : 0;
493 right = (data[1] & aiptek->curSetting.mouseButtonRight >> 2) != 0 ? 1 : 0;
494 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle >> 2) != 0 ? 1 : 0;
495
496 input_report_key(inputdev, BTN_LEFT, left);
497 input_report_key(inputdev, BTN_MIDDLE, middle);
498 input_report_key(inputdev, BTN_RIGHT, right);
499
500 input_report_abs(inputdev, ABS_MISC,
501 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
502 input_report_rel(inputdev, REL_X, x);
503 input_report_rel(inputdev, REL_Y, y);
504
505 /* Wheel support is in the form of a single-event
506 * firing.
507 */
508 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
509 input_report_rel(inputdev, REL_WHEEL,
510 aiptek->curSetting.wheel);
511 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
512 }
513 if (aiptek->lastMacro != -1) {
514 input_report_key(inputdev,
515 macroKeyEvents[aiptek->lastMacro], 0);
516 aiptek->lastMacro = -1;
517 }
518 input_sync(inputdev);
519 }
520 }
521 /* Report 2 is delivered only by the stylus, and delivers
522 * absolute coordinates.
523 */
524 else if (data[0] == 2) {
525 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
526 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
527 } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE
528 (aiptek->curSetting.pointerMode)) {
529 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
530 } else {
531 x = get_unaligned_le16(data + 1);
532 y = get_unaligned_le16(data + 3);
533 z = get_unaligned_le16(data + 6);
534
535 dv = (data[5] & 0x01) != 0 ? 1 : 0;
536 p = (data[5] & 0x02) != 0 ? 1 : 0;
537 tip = (data[5] & 0x04) != 0 ? 1 : 0;
538
539 /* Use jitterable to re-arrange button masks
540 */
541 jitterable = data[5] & 0x18;
542
543 bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
544 pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
545
546 /* dv indicates 'data valid' (e.g., the tablet is in sync
547 * and has delivered a "correct" report) We will ignore
548 * all 'bad' reports...
549 */
550 if (dv != 0) {
551 /* If the selected tool changed, reset the old
552 * tool key, and set the new one.
553 */
554 if (aiptek->previousToolMode !=
555 aiptek->curSetting.toolMode) {
556 input_report_key(inputdev,
557 aiptek->previousToolMode, 0);
558 input_report_key(inputdev,
559 aiptek->curSetting.toolMode,
560 1);
561 aiptek->previousToolMode =
562 aiptek->curSetting.toolMode;
563 }
564
565 if (p != 0) {
566 input_report_abs(inputdev, ABS_X, x);
567 input_report_abs(inputdev, ABS_Y, y);
568 input_report_abs(inputdev, ABS_PRESSURE, z);
569
570 input_report_key(inputdev, BTN_TOUCH, tip);
571 input_report_key(inputdev, BTN_STYLUS, bs);
572 input_report_key(inputdev, BTN_STYLUS2, pck);
573
574 if (aiptek->curSetting.xTilt !=
575 AIPTEK_TILT_DISABLE) {
576 input_report_abs(inputdev,
577 ABS_TILT_X,
578 aiptek->curSetting.xTilt);
579 }
580 if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) {
581 input_report_abs(inputdev,
582 ABS_TILT_Y,
583 aiptek->curSetting.yTilt);
584 }
585
586 /* Wheel support is in the form of a single-event
587 * firing.
588 */
589 if (aiptek->curSetting.wheel !=
590 AIPTEK_WHEEL_DISABLE) {
591 input_report_abs(inputdev,
592 ABS_WHEEL,
593 aiptek->curSetting.wheel);
594 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
595 }
596 }
597 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS);
598 if (aiptek->lastMacro != -1) {
599 input_report_key(inputdev,
600 macroKeyEvents[aiptek->lastMacro], 0);
601 aiptek->lastMacro = -1;
602 }
603 input_sync(inputdev);
604 }
605 }
606 }
607 /* Report 3's come from the mouse in absolute mode.
608 */
609 else if (data[0] == 3) {
610 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
611 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
612 } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE
613 (aiptek->curSetting.pointerMode)) {
614 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
615 } else {
616 x = get_unaligned_le16(data + 1);
617 y = get_unaligned_le16(data + 3);
618
619 jitterable = data[5] & 0x1c;
620
621 dv = (data[5] & 0x01) != 0 ? 1 : 0;
622 p = (data[5] & 0x02) != 0 ? 1 : 0;
623 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
624 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
625 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
626
627 if (dv != 0) {
628 /* If the selected tool changed, reset the old
629 * tool key, and set the new one.
630 */
631 if (aiptek->previousToolMode !=
632 aiptek->curSetting.toolMode) {
633 input_report_key(inputdev,
634 aiptek->previousToolMode, 0);
635 input_report_key(inputdev,
636 aiptek->curSetting.toolMode,
637 1);
638 aiptek->previousToolMode =
639 aiptek->curSetting.toolMode;
640 }
641
642 if (p != 0) {
643 input_report_abs(inputdev, ABS_X, x);
644 input_report_abs(inputdev, ABS_Y, y);
645
646 input_report_key(inputdev, BTN_LEFT, left);
647 input_report_key(inputdev, BTN_MIDDLE, middle);
648 input_report_key(inputdev, BTN_RIGHT, right);
649
650 /* Wheel support is in the form of a single-event
651 * firing.
652 */
653 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
654 input_report_abs(inputdev,
655 ABS_WHEEL,
656 aiptek->curSetting.wheel);
657 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
658 }
659 }
660 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_MOUSE);
661 if (aiptek->lastMacro != -1) {
662 input_report_key(inputdev,
663 macroKeyEvents[aiptek->lastMacro], 0);
664 aiptek->lastMacro = -1;
665 }
666 input_sync(inputdev);
667 }
668 }
669 }
670 /* Report 4s come from the macro keys when pressed by stylus
671 */
672 else if (data[0] == 4) {
673 jitterable = data[1] & 0x18;
674
675 dv = (data[1] & 0x01) != 0 ? 1 : 0;
676 p = (data[1] & 0x02) != 0 ? 1 : 0;
677 tip = (data[1] & 0x04) != 0 ? 1 : 0;
678 bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
679 pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
680
681 macro = dv && p && tip && !(data[3] & 1) ? (data[3] >> 1) : -1;
682 z = get_unaligned_le16(data + 4);
683
684 if (dv) {
685 /* If the selected tool changed, reset the old
686 * tool key, and set the new one.
687 */
688 if (aiptek->previousToolMode !=
689 aiptek->curSetting.toolMode) {
690 input_report_key(inputdev,
691 aiptek->previousToolMode, 0);
692 input_report_key(inputdev,
693 aiptek->curSetting.toolMode,
694 1);
695 aiptek->previousToolMode =
696 aiptek->curSetting.toolMode;
697 }
698 }
699
700 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
701 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
702 aiptek->lastMacro = -1;
703 }
704
705 if (macro != -1 && macro != aiptek->lastMacro) {
706 input_report_key(inputdev, macroKeyEvents[macro], 1);
707 aiptek->lastMacro = macro;
708 }
709 input_report_abs(inputdev, ABS_MISC,
710 p | AIPTEK_REPORT_TOOL_STYLUS);
711 input_sync(inputdev);
712 }
713 /* Report 5s come from the macro keys when pressed by mouse
714 */
715 else if (data[0] == 5) {
716 jitterable = data[1] & 0x1c;
717
718 dv = (data[1] & 0x01) != 0 ? 1 : 0;
719 p = (data[1] & 0x02) != 0 ? 1 : 0;
720 left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
721 right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
722 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
723 macro = dv && p && left && !(data[3] & 1) ? (data[3] >> 1) : 0;
724
725 if (dv) {
726 /* If the selected tool changed, reset the old
727 * tool key, and set the new one.
728 */
729 if (aiptek->previousToolMode !=
730 aiptek->curSetting.toolMode) {
731 input_report_key(inputdev,
732 aiptek->previousToolMode, 0);
733 input_report_key(inputdev,
734 aiptek->curSetting.toolMode, 1);
735 aiptek->previousToolMode = aiptek->curSetting.toolMode;
736 }
737 }
738
739 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
740 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
741 aiptek->lastMacro = -1;
742 }
743
744 if (macro != -1 && macro != aiptek->lastMacro) {
745 input_report_key(inputdev, macroKeyEvents[macro], 1);
746 aiptek->lastMacro = macro;
747 }
748
749 input_report_abs(inputdev, ABS_MISC,
750 p | AIPTEK_REPORT_TOOL_MOUSE);
751 input_sync(inputdev);
752 }
753 /* We have no idea which tool can generate a report 6. Theoretically,
754 * neither need to, having been given reports 4 & 5 for such use.
755 * However, report 6 is the 'official-looking' report for macroKeys;
756 * reports 4 & 5 supposively are used to support unnamed, unknown
757 * hat switches (which just so happen to be the macroKeys.)
758 */
759 else if (data[0] == 6) {
760 macro = get_unaligned_le16(data + 1);
761 if (macro > 0) {
762 input_report_key(inputdev, macroKeyEvents[macro - 1],
763 0);
764 }
765 if (macro < 25) {
766 input_report_key(inputdev, macroKeyEvents[macro + 1],
767 0);
768 }
769
770 /* If the selected tool changed, reset the old
771 tool key, and set the new one.
772 */
773 if (aiptek->previousToolMode !=
774 aiptek->curSetting.toolMode) {
775 input_report_key(inputdev,
776 aiptek->previousToolMode, 0);
777 input_report_key(inputdev,
778 aiptek->curSetting.toolMode,
779 1);
780 aiptek->previousToolMode =
781 aiptek->curSetting.toolMode;
782 }
783
784 input_report_key(inputdev, macroKeyEvents[macro], 1);
785 input_report_abs(inputdev, ABS_MISC,
786 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
787 input_sync(inputdev);
788 } else {
789 dev_dbg(&intf->dev, "Unknown report %d\n", data[0]);
790 }
791
792 /* Jitter may occur when the user presses a button on the stlyus
793 * or the mouse. What we do to prevent that is wait 'x' milliseconds
794 * following a 'jitterable' event, which should give the hand some time
795 * stabilize itself.
796 *
797 * We just introduced aiptek->previousJitterable to carry forth the
798 * notion that jitter occurs when the button state changes from on to off:
799 * a person drawing, holding a button down is not subject to jittering.
800 * With that in mind, changing from upper button depressed to lower button
801 * WILL transition through a jitter delay.
802 */
803
804 if (aiptek->previousJitterable != jitterable &&
805 aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) {
806 aiptek->endDelay = jiffies +
807 ((aiptek->curSetting.jitterDelay * HZ) / 1000);
808 aiptek->inDelay = 1;
809 }
810 aiptek->previousJitterable = jitterable;
811
812 exit:
813 retval = usb_submit_urb(urb, GFP_ATOMIC);
814 if (retval != 0) {
815 dev_err(&intf->dev,
816 "%s - usb_submit_urb failed with result %d\n",
817 __func__, retval);
818 }
819 }
820
821 /***********************************************************************
822 * These are the USB id's known so far. We do not identify them to
823 * specific Aiptek model numbers, because there has been overlaps,
824 * use, and reuse of id's in existing models. Certain models have
825 * been known to use more than one ID, indicative perhaps of
826 * manufacturing revisions. In any event, we consider these
827 * IDs to not be model-specific nor unique.
828 */
829 static const struct usb_device_id aiptek_ids[] = {
830 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)},
831 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)},
832 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)},
833 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)},
834 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)},
835 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)},
836 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)},
837 {USB_DEVICE(USB_VENDOR_ID_KYE, 0x5003)},
838 {}
839 };
840
841 MODULE_DEVICE_TABLE(usb, aiptek_ids);
842
843 /***********************************************************************
844 * Open an instance of the tablet driver.
845 */
846 static int aiptek_open(struct input_dev *inputdev)
847 {
848 struct aiptek *aiptek = input_get_drvdata(inputdev);
849
850 aiptek->urb->dev = aiptek->usbdev;
851 if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0)
852 return -EIO;
853
854 return 0;
855 }
856
857 /***********************************************************************
858 * Close an instance of the tablet driver.
859 */
860 static void aiptek_close(struct input_dev *inputdev)
861 {
862 struct aiptek *aiptek = input_get_drvdata(inputdev);
863
864 usb_kill_urb(aiptek->urb);
865 }
866
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.
870 */
871 static int
872 aiptek_set_report(struct aiptek *aiptek,
873 unsigned char report_type,
874 unsigned char report_id, void *buffer, int size)
875 {
876 return usb_control_msg(aiptek->usbdev,
877 usb_sndctrlpipe(aiptek->usbdev, 0),
878 USB_REQ_SET_REPORT,
879 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
880 USB_DIR_OUT, (report_type << 8) + report_id,
881 aiptek->ifnum, buffer, size, 5000);
882 }
883
884 static int
885 aiptek_get_report(struct aiptek *aiptek,
886 unsigned char report_type,
887 unsigned char report_id, void *buffer, int size)
888 {
889 return usb_control_msg(aiptek->usbdev,
890 usb_rcvctrlpipe(aiptek->usbdev, 0),
891 USB_REQ_GET_REPORT,
892 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
893 USB_DIR_IN, (report_type << 8) + report_id,
894 aiptek->ifnum, buffer, size, 5000);
895 }
896
897 /***********************************************************************
898 * Send a command to the tablet.
899 */
900 static int
901 aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data)
902 {
903 const int sizeof_buf = 3 * sizeof(u8);
904 int ret;
905 u8 *buf;
906
907 buf = kmalloc(sizeof_buf, GFP_KERNEL);
908 if (!buf)
909 return -ENOMEM;
910
911 buf[0] = 2;
912 buf[1] = command;
913 buf[2] = data;
914
915 if ((ret =
916 aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
917 dev_dbg(&aiptek->intf->dev,
918 "aiptek_program: failed, tried to send: 0x%02x 0x%02x\n",
919 command, data);
920 }
921 kfree(buf);
922 return ret < 0 ? ret : 0;
923 }
924
925 /***********************************************************************
926 * Retrieve information from the tablet. Querying info is defined as first
927 * sending the {command,data} sequence as a command, followed by a wait
928 * (aka, "programmaticDelay") and then a "read" request.
929 */
930 static int
931 aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data)
932 {
933 const int sizeof_buf = 3 * sizeof(u8);
934 int ret;
935 u8 *buf;
936
937 buf = kmalloc(sizeof_buf, GFP_KERNEL);
938 if (!buf)
939 return -ENOMEM;
940
941 buf[0] = 2;
942 buf[1] = command;
943 buf[2] = data;
944
945 if (aiptek_command(aiptek, command, data) != 0) {
946 kfree(buf);
947 return -EIO;
948 }
949 msleep(aiptek->curSetting.programmableDelay);
950
951 if ((ret =
952 aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
953 dev_dbg(&aiptek->intf->dev,
954 "aiptek_query failed: returned 0x%02x 0x%02x 0x%02x\n",
955 buf[0], buf[1], buf[2]);
956 ret = -EIO;
957 } else {
958 ret = get_unaligned_le16(buf + 1);
959 }
960 kfree(buf);
961 return ret;
962 }
963
964 /***********************************************************************
965 * Program the tablet into either absolute or relative mode.
966 * We also get information about the tablet's size.
967 */
968 static int aiptek_program_tablet(struct aiptek *aiptek)
969 {
970 int ret;
971 /* Execute Resolution500LPI */
972 if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0)
973 return ret;
974
975 /* Query getModelCode */
976 if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0)
977 return ret;
978 aiptek->features.modelCode = ret & 0xff;
979
980 /* Query getODMCode */
981 if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0)
982 return ret;
983 aiptek->features.odmCode = ret;
984
985 /* Query getFirmwareCode */
986 if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0)
987 return ret;
988 aiptek->features.firmwareCode = ret;
989
990 /* Query getXextension */
991 if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0)
992 return ret;
993 input_set_abs_params(aiptek->inputdev, ABS_X, 0, ret - 1, 0, 0);
994
995 /* Query getYextension */
996 if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0)
997 return ret;
998 input_set_abs_params(aiptek->inputdev, ABS_Y, 0, ret - 1, 0, 0);
999
1000 /* Query getPressureLevels */
1001 if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0)
1002 return ret;
1003 input_set_abs_params(aiptek->inputdev, ABS_PRESSURE, 0, ret - 1, 0, 0);
1004
1005 /* Depending on whether we are in absolute or relative mode, we will
1006 * do a switchToTablet(absolute) or switchToMouse(relative) command.
1007 */
1008 if (aiptek->curSetting.coordinateMode ==
1009 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
1010 /* Execute switchToTablet */
1011 if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) {
1012 return ret;
1013 }
1014 } else {
1015 /* Execute switchToMouse */
1016 if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) {
1017 return ret;
1018 }
1019 }
1020
1021 /* Enable the macro keys */
1022 if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0)
1023 return ret;
1024 #if 0
1025 /* Execute FilterOn */
1026 if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0)
1027 return ret;
1028 #endif
1029
1030 /* Execute AutoGainOn */
1031 if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0)
1032 return ret;
1033
1034 /* Reset the eventCount, so we track events from last (re)programming
1035 */
1036 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA;
1037 aiptek->eventCount = 0;
1038
1039 return 0;
1040 }
1041
1042 /***********************************************************************
1043 * Sysfs functions. Sysfs prefers that individually-tunable parameters
1044 * exist in their separate pseudo-files. Summary data that is immutable
1045 * may exist in a singular file so long as you don't define a writeable
1046 * interface.
1047 */
1048
1049 /***********************************************************************
1050 * support the 'size' file -- display support
1051 */
1052 static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf)
1053 {
1054 struct aiptek *aiptek = dev_get_drvdata(dev);
1055
1056 return snprintf(buf, PAGE_SIZE, "%dx%d\n",
1057 input_abs_get_max(aiptek->inputdev, ABS_X) + 1,
1058 input_abs_get_max(aiptek->inputdev, ABS_Y) + 1);
1059 }
1060
1061 /* These structs define the sysfs files, param #1 is the name of the
1062 * file, param 2 is the file permissions, param 3 & 4 are to the
1063 * output generator and input parser routines. Absence of a routine is
1064 * permitted -- it only means can't either 'cat' the file, or send data
1065 * to it.
1066 */
1067 static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL);
1068
1069 /***********************************************************************
1070 * support routines for the 'pointer_mode' file. Note that this file
1071 * both displays current setting and allows reprogramming.
1072 */
1073 static struct aiptek_map pointer_mode_map[] = {
1074 { "stylus", AIPTEK_POINTER_ONLY_STYLUS_MODE },
1075 { "mouse", AIPTEK_POINTER_ONLY_MOUSE_MODE },
1076 { "either", AIPTEK_POINTER_EITHER_MODE },
1077 { NULL, AIPTEK_INVALID_VALUE }
1078 };
1079
1080 static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf)
1081 {
1082 struct aiptek *aiptek = dev_get_drvdata(dev);
1083
1084 return snprintf(buf, PAGE_SIZE, "%s\n",
1085 map_val_to_str(pointer_mode_map,
1086 aiptek->curSetting.pointerMode));
1087 }
1088
1089 static ssize_t
1090 store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1091 {
1092 struct aiptek *aiptek = dev_get_drvdata(dev);
1093 int new_mode = map_str_to_val(pointer_mode_map, buf, count);
1094
1095 if (new_mode == AIPTEK_INVALID_VALUE)
1096 return -EINVAL;
1097
1098 aiptek->newSetting.pointerMode = new_mode;
1099 return count;
1100 }
1101
1102 static DEVICE_ATTR(pointer_mode,
1103 S_IRUGO | S_IWUSR,
1104 show_tabletPointerMode, store_tabletPointerMode);
1105
1106 /***********************************************************************
1107 * support routines for the 'coordinate_mode' file. Note that this file
1108 * both displays current setting and allows reprogramming.
1109 */
1110
1111 static struct aiptek_map coordinate_mode_map[] = {
1112 { "absolute", AIPTEK_COORDINATE_ABSOLUTE_MODE },
1113 { "relative", AIPTEK_COORDINATE_RELATIVE_MODE },
1114 { NULL, AIPTEK_INVALID_VALUE }
1115 };
1116
1117 static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf)
1118 {
1119 struct aiptek *aiptek = dev_get_drvdata(dev);
1120
1121 return snprintf(buf, PAGE_SIZE, "%s\n",
1122 map_val_to_str(coordinate_mode_map,
1123 aiptek->curSetting.coordinateMode));
1124 }
1125
1126 static ssize_t
1127 store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1128 {
1129 struct aiptek *aiptek = dev_get_drvdata(dev);
1130 int new_mode = map_str_to_val(coordinate_mode_map, buf, count);
1131
1132 if (new_mode == AIPTEK_INVALID_VALUE)
1133 return -EINVAL;
1134
1135 aiptek->newSetting.coordinateMode = new_mode;
1136 return count;
1137 }
1138
1139 static DEVICE_ATTR(coordinate_mode,
1140 S_IRUGO | S_IWUSR,
1141 show_tabletCoordinateMode, store_tabletCoordinateMode);
1142
1143 /***********************************************************************
1144 * support routines for the 'tool_mode' file. Note that this file
1145 * both displays current setting and allows reprogramming.
1146 */
1147
1148 static struct aiptek_map tool_mode_map[] = {
1149 { "mouse", AIPTEK_TOOL_BUTTON_MOUSE_MODE },
1150 { "eraser", AIPTEK_TOOL_BUTTON_ERASER_MODE },
1151 { "pencil", AIPTEK_TOOL_BUTTON_PENCIL_MODE },
1152 { "pen", AIPTEK_TOOL_BUTTON_PEN_MODE },
1153 { "brush", AIPTEK_TOOL_BUTTON_BRUSH_MODE },
1154 { "airbrush", AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE },
1155 { "lens", AIPTEK_TOOL_BUTTON_LENS_MODE },
1156 { NULL, AIPTEK_INVALID_VALUE }
1157 };
1158
1159 static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf)
1160 {
1161 struct aiptek *aiptek = dev_get_drvdata(dev);
1162
1163 return snprintf(buf, PAGE_SIZE, "%s\n",
1164 map_val_to_str(tool_mode_map,
1165 aiptek->curSetting.toolMode));
1166 }
1167
1168 static ssize_t
1169 store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1170 {
1171 struct aiptek *aiptek = dev_get_drvdata(dev);
1172 int new_mode = map_str_to_val(tool_mode_map, buf, count);
1173
1174 if (new_mode == AIPTEK_INVALID_VALUE)
1175 return -EINVAL;
1176
1177 aiptek->newSetting.toolMode = new_mode;
1178 return count;
1179 }
1180
1181 static DEVICE_ATTR(tool_mode,
1182 S_IRUGO | S_IWUSR,
1183 show_tabletToolMode, store_tabletToolMode);
1184
1185 /***********************************************************************
1186 * support routines for the 'xtilt' file. Note that this file
1187 * both displays current setting and allows reprogramming.
1188 */
1189 static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf)
1190 {
1191 struct aiptek *aiptek = dev_get_drvdata(dev);
1192
1193 if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
1194 return snprintf(buf, PAGE_SIZE, "disable\n");
1195 } else {
1196 return snprintf(buf, PAGE_SIZE, "%d\n",
1197 aiptek->curSetting.xTilt);
1198 }
1199 }
1200
1201 static ssize_t
1202 store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1203 {
1204 struct aiptek *aiptek = dev_get_drvdata(dev);
1205 int x;
1206
1207 if (kstrtoint(buf, 10, &x)) {
1208 size_t len = buf[count - 1] == '\n' ? count - 1 : count;
1209
1210 if (strncmp(buf, "disable", len))
1211 return -EINVAL;
1212
1213 aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
1214 } else {
1215 if (x < AIPTEK_TILT_MIN || x > AIPTEK_TILT_MAX)
1216 return -EINVAL;
1217
1218 aiptek->newSetting.xTilt = x;
1219 }
1220
1221 return count;
1222 }
1223
1224 static DEVICE_ATTR(xtilt,
1225 S_IRUGO | S_IWUSR, show_tabletXtilt, store_tabletXtilt);
1226
1227 /***********************************************************************
1228 * support routines for the 'ytilt' file. Note that this file
1229 * both displays current setting and allows reprogramming.
1230 */
1231 static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf)
1232 {
1233 struct aiptek *aiptek = dev_get_drvdata(dev);
1234
1235 if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
1236 return snprintf(buf, PAGE_SIZE, "disable\n");
1237 } else {
1238 return snprintf(buf, PAGE_SIZE, "%d\n",
1239 aiptek->curSetting.yTilt);
1240 }
1241 }
1242
1243 static ssize_t
1244 store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1245 {
1246 struct aiptek *aiptek = dev_get_drvdata(dev);
1247 int y;
1248
1249 if (kstrtoint(buf, 10, &y)) {
1250 size_t len = buf[count - 1] == '\n' ? count - 1 : count;
1251
1252 if (strncmp(buf, "disable", len))
1253 return -EINVAL;
1254
1255 aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
1256 } else {
1257 if (y < AIPTEK_TILT_MIN || y > AIPTEK_TILT_MAX)
1258 return -EINVAL;
1259
1260 aiptek->newSetting.yTilt = y;
1261 }
1262
1263 return count;
1264 }
1265
1266 static DEVICE_ATTR(ytilt,
1267 S_IRUGO | S_IWUSR, show_tabletYtilt, store_tabletYtilt);
1268
1269 /***********************************************************************
1270 * support routines for the 'jitter' file. Note that this file
1271 * both displays current setting and allows reprogramming.
1272 */
1273 static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf)
1274 {
1275 struct aiptek *aiptek = dev_get_drvdata(dev);
1276
1277 return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay);
1278 }
1279
1280 static ssize_t
1281 store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1282 {
1283 struct aiptek *aiptek = dev_get_drvdata(dev);
1284 int err, j;
1285
1286 err = kstrtoint(buf, 10, &j);
1287 if (err)
1288 return err;
1289
1290 aiptek->newSetting.jitterDelay = j;
1291 return count;
1292 }
1293
1294 static DEVICE_ATTR(jitter,
1295 S_IRUGO | S_IWUSR,
1296 show_tabletJitterDelay, store_tabletJitterDelay);
1297
1298 /***********************************************************************
1299 * support routines for the 'delay' file. Note that this file
1300 * both displays current setting and allows reprogramming.
1301 */
1302 static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf)
1303 {
1304 struct aiptek *aiptek = dev_get_drvdata(dev);
1305
1306 return snprintf(buf, PAGE_SIZE, "%d\n",
1307 aiptek->curSetting.programmableDelay);
1308 }
1309
1310 static ssize_t
1311 store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1312 {
1313 struct aiptek *aiptek = dev_get_drvdata(dev);
1314 int err, d;
1315
1316 err = kstrtoint(buf, 10, &d);
1317 if (err)
1318 return err;
1319
1320 aiptek->newSetting.programmableDelay = d;
1321 return count;
1322 }
1323
1324 static DEVICE_ATTR(delay,
1325 S_IRUGO | S_IWUSR,
1326 show_tabletProgrammableDelay, store_tabletProgrammableDelay);
1327
1328 /***********************************************************************
1329 * support routines for the 'event_count' file. Note that this file
1330 * only displays current setting.
1331 */
1332 static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf)
1333 {
1334 struct aiptek *aiptek = dev_get_drvdata(dev);
1335
1336 return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount);
1337 }
1338
1339 static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL);
1340
1341 /***********************************************************************
1342 * support routines for the 'diagnostic' file. Note that this file
1343 * only displays current setting.
1344 */
1345 static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf)
1346 {
1347 struct aiptek *aiptek = dev_get_drvdata(dev);
1348 char *retMsg;
1349
1350 switch (aiptek->diagnostic) {
1351 case AIPTEK_DIAGNOSTIC_NA:
1352 retMsg = "no errors\n";
1353 break;
1354
1355 case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE:
1356 retMsg = "Error: receiving relative reports\n";
1357 break;
1358
1359 case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE:
1360 retMsg = "Error: receiving absolute reports\n";
1361 break;
1362
1363 case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED:
1364 if (aiptek->curSetting.pointerMode ==
1365 AIPTEK_POINTER_ONLY_MOUSE_MODE) {
1366 retMsg = "Error: receiving stylus reports\n";
1367 } else {
1368 retMsg = "Error: receiving mouse reports\n";
1369 }
1370 break;
1371
1372 default:
1373 return 0;
1374 }
1375 return snprintf(buf, PAGE_SIZE, retMsg);
1376 }
1377
1378 static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL);
1379
1380 /***********************************************************************
1381 * support routines for the 'stylus_upper' file. Note that this file
1382 * both displays current setting and allows for setting changing.
1383 */
1384
1385 static struct aiptek_map stylus_button_map[] = {
1386 { "upper", AIPTEK_STYLUS_UPPER_BUTTON },
1387 { "lower", AIPTEK_STYLUS_LOWER_BUTTON },
1388 { NULL, AIPTEK_INVALID_VALUE }
1389 };
1390
1391 static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf)
1392 {
1393 struct aiptek *aiptek = dev_get_drvdata(dev);
1394
1395 return snprintf(buf, PAGE_SIZE, "%s\n",
1396 map_val_to_str(stylus_button_map,
1397 aiptek->curSetting.stylusButtonUpper));
1398 }
1399
1400 static ssize_t
1401 store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1402 {
1403 struct aiptek *aiptek = dev_get_drvdata(dev);
1404 int new_button = map_str_to_val(stylus_button_map, buf, count);
1405
1406 if (new_button == AIPTEK_INVALID_VALUE)
1407 return -EINVAL;
1408
1409 aiptek->newSetting.stylusButtonUpper = new_button;
1410 return count;
1411 }
1412
1413 static DEVICE_ATTR(stylus_upper,
1414 S_IRUGO | S_IWUSR,
1415 show_tabletStylusUpper, store_tabletStylusUpper);
1416
1417 /***********************************************************************
1418 * support routines for the 'stylus_lower' file. Note that this file
1419 * both displays current setting and allows for setting changing.
1420 */
1421
1422 static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf)
1423 {
1424 struct aiptek *aiptek = dev_get_drvdata(dev);
1425
1426 return snprintf(buf, PAGE_SIZE, "%s\n",
1427 map_val_to_str(stylus_button_map,
1428 aiptek->curSetting.stylusButtonLower));
1429 }
1430
1431 static ssize_t
1432 store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1433 {
1434 struct aiptek *aiptek = dev_get_drvdata(dev);
1435 int new_button = map_str_to_val(stylus_button_map, buf, count);
1436
1437 if (new_button == AIPTEK_INVALID_VALUE)
1438 return -EINVAL;
1439
1440 aiptek->newSetting.stylusButtonLower = new_button;
1441 return count;
1442 }
1443
1444 static DEVICE_ATTR(stylus_lower,
1445 S_IRUGO | S_IWUSR,
1446 show_tabletStylusLower, store_tabletStylusLower);
1447
1448 /***********************************************************************
1449 * support routines for the 'mouse_left' file. Note that this file
1450 * both displays current setting and allows for setting changing.
1451 */
1452
1453 static struct aiptek_map mouse_button_map[] = {
1454 { "left", AIPTEK_MOUSE_LEFT_BUTTON },
1455 { "middle", AIPTEK_MOUSE_MIDDLE_BUTTON },
1456 { "right", AIPTEK_MOUSE_RIGHT_BUTTON },
1457 { NULL, AIPTEK_INVALID_VALUE }
1458 };
1459
1460 static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf)
1461 {
1462 struct aiptek *aiptek = dev_get_drvdata(dev);
1463
1464 return snprintf(buf, PAGE_SIZE, "%s\n",
1465 map_val_to_str(mouse_button_map,
1466 aiptek->curSetting.mouseButtonLeft));
1467 }
1468
1469 static ssize_t
1470 store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1471 {
1472 struct aiptek *aiptek = dev_get_drvdata(dev);
1473 int new_button = map_str_to_val(mouse_button_map, buf, count);
1474
1475 if (new_button == AIPTEK_INVALID_VALUE)
1476 return -EINVAL;
1477
1478 aiptek->newSetting.mouseButtonLeft = new_button;
1479 return count;
1480 }
1481
1482 static DEVICE_ATTR(mouse_left,
1483 S_IRUGO | S_IWUSR,
1484 show_tabletMouseLeft, store_tabletMouseLeft);
1485
1486 /***********************************************************************
1487 * support routines for the 'mouse_middle' file. Note that this file
1488 * both displays current setting and allows for setting changing.
1489 */
1490 static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf)
1491 {
1492 struct aiptek *aiptek = dev_get_drvdata(dev);
1493
1494 return snprintf(buf, PAGE_SIZE, "%s\n",
1495 map_val_to_str(mouse_button_map,
1496 aiptek->curSetting.mouseButtonMiddle));
1497 }
1498
1499 static ssize_t
1500 store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1501 {
1502 struct aiptek *aiptek = dev_get_drvdata(dev);
1503 int new_button = map_str_to_val(mouse_button_map, buf, count);
1504
1505 if (new_button == AIPTEK_INVALID_VALUE)
1506 return -EINVAL;
1507
1508 aiptek->newSetting.mouseButtonMiddle = new_button;
1509 return count;
1510 }
1511
1512 static DEVICE_ATTR(mouse_middle,
1513 S_IRUGO | S_IWUSR,
1514 show_tabletMouseMiddle, store_tabletMouseMiddle);
1515
1516 /***********************************************************************
1517 * support routines for the 'mouse_right' file. Note that this file
1518 * both displays current setting and allows for setting changing.
1519 */
1520 static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf)
1521 {
1522 struct aiptek *aiptek = dev_get_drvdata(dev);
1523
1524 return snprintf(buf, PAGE_SIZE, "%s\n",
1525 map_val_to_str(mouse_button_map,
1526 aiptek->curSetting.mouseButtonRight));
1527 }
1528
1529 static ssize_t
1530 store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1531 {
1532 struct aiptek *aiptek = dev_get_drvdata(dev);
1533 int new_button = map_str_to_val(mouse_button_map, buf, count);
1534
1535 if (new_button == AIPTEK_INVALID_VALUE)
1536 return -EINVAL;
1537
1538 aiptek->newSetting.mouseButtonRight = new_button;
1539 return count;
1540 }
1541
1542 static DEVICE_ATTR(mouse_right,
1543 S_IRUGO | S_IWUSR,
1544 show_tabletMouseRight, store_tabletMouseRight);
1545
1546 /***********************************************************************
1547 * support routines for the 'wheel' file. Note that this file
1548 * both displays current setting and allows for setting changing.
1549 */
1550 static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf)
1551 {
1552 struct aiptek *aiptek = dev_get_drvdata(dev);
1553
1554 if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
1555 return snprintf(buf, PAGE_SIZE, "disable\n");
1556 } else {
1557 return snprintf(buf, PAGE_SIZE, "%d\n",
1558 aiptek->curSetting.wheel);
1559 }
1560 }
1561
1562 static ssize_t
1563 store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1564 {
1565 struct aiptek *aiptek = dev_get_drvdata(dev);
1566 int err, w;
1567
1568 err = kstrtoint(buf, 10, &w);
1569 if (err)
1570 return err;
1571
1572 aiptek->newSetting.wheel = w;
1573 return count;
1574 }
1575
1576 static DEVICE_ATTR(wheel,
1577 S_IRUGO | S_IWUSR, show_tabletWheel, store_tabletWheel);
1578
1579 /***********************************************************************
1580 * support routines for the 'execute' file. Note that this file
1581 * both displays current setting and allows for setting changing.
1582 */
1583 static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf)
1584 {
1585 /* There is nothing useful to display, so a one-line manual
1586 * is in order...
1587 */
1588 return snprintf(buf, PAGE_SIZE,
1589 "Write anything to this file to program your tablet.\n");
1590 }
1591
1592 static ssize_t
1593 store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1594 {
1595 struct aiptek *aiptek = dev_get_drvdata(dev);
1596
1597 /* We do not care what you write to this file. Merely the action
1598 * of writing to this file triggers a tablet reprogramming.
1599 */
1600 memcpy(&aiptek->curSetting, &aiptek->newSetting,
1601 sizeof(struct aiptek_settings));
1602
1603 if (aiptek_program_tablet(aiptek) < 0)
1604 return -EIO;
1605
1606 return count;
1607 }
1608
1609 static DEVICE_ATTR(execute,
1610 S_IRUGO | S_IWUSR, show_tabletExecute, store_tabletExecute);
1611
1612 /***********************************************************************
1613 * support routines for the 'odm_code' file. Note that this file
1614 * only displays current setting.
1615 */
1616 static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf)
1617 {
1618 struct aiptek *aiptek = dev_get_drvdata(dev);
1619
1620 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode);
1621 }
1622
1623 static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL);
1624
1625 /***********************************************************************
1626 * support routines for the 'model_code' file. Note that this file
1627 * only displays current setting.
1628 */
1629 static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf)
1630 {
1631 struct aiptek *aiptek = dev_get_drvdata(dev);
1632
1633 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode);
1634 }
1635
1636 static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL);
1637
1638 /***********************************************************************
1639 * support routines for the 'firmware_code' file. Note that this file
1640 * only displays current setting.
1641 */
1642 static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf)
1643 {
1644 struct aiptek *aiptek = dev_get_drvdata(dev);
1645
1646 return snprintf(buf, PAGE_SIZE, "%04x\n",
1647 aiptek->features.firmwareCode);
1648 }
1649
1650 static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
1651
1652 static struct attribute *aiptek_attributes[] = {
1653 &dev_attr_size.attr,
1654 &dev_attr_pointer_mode.attr,
1655 &dev_attr_coordinate_mode.attr,
1656 &dev_attr_tool_mode.attr,
1657 &dev_attr_xtilt.attr,
1658 &dev_attr_ytilt.attr,
1659 &dev_attr_jitter.attr,
1660 &dev_attr_delay.attr,
1661 &dev_attr_event_count.attr,
1662 &dev_attr_diagnostic.attr,
1663 &dev_attr_odm_code.attr,
1664 &dev_attr_model_code.attr,
1665 &dev_attr_firmware_code.attr,
1666 &dev_attr_stylus_lower.attr,
1667 &dev_attr_stylus_upper.attr,
1668 &dev_attr_mouse_left.attr,
1669 &dev_attr_mouse_middle.attr,
1670 &dev_attr_mouse_right.attr,
1671 &dev_attr_wheel.attr,
1672 &dev_attr_execute.attr,
1673 NULL
1674 };
1675
1676 static struct attribute_group aiptek_attribute_group = {
1677 .attrs = aiptek_attributes,
1678 };
1679
1680 /***********************************************************************
1681 * This routine is called when a tablet has been identified. It basically
1682 * sets up the tablet and the driver's internal structures.
1683 */
1684 static int
1685 aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
1686 {
1687 struct usb_device *usbdev = interface_to_usbdev(intf);
1688 struct usb_endpoint_descriptor *endpoint;
1689 struct aiptek *aiptek;
1690 struct input_dev *inputdev;
1691 int i;
1692 int speeds[] = { 0,
1693 AIPTEK_PROGRAMMABLE_DELAY_50,
1694 AIPTEK_PROGRAMMABLE_DELAY_400,
1695 AIPTEK_PROGRAMMABLE_DELAY_25,
1696 AIPTEK_PROGRAMMABLE_DELAY_100,
1697 AIPTEK_PROGRAMMABLE_DELAY_200,
1698 AIPTEK_PROGRAMMABLE_DELAY_300
1699 };
1700 int err = -ENOMEM;
1701
1702 /* programmableDelay is where the command-line specified
1703 * delay is kept. We make it the first element of speeds[],
1704 * so therefore, your override speed is tried first, then the
1705 * remainder. Note that the default value of 400ms will be tried
1706 * if you do not specify any command line parameter.
1707 */
1708 speeds[0] = programmableDelay;
1709
1710 aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL);
1711 inputdev = input_allocate_device();
1712 if (!aiptek || !inputdev) {
1713 dev_warn(&intf->dev,
1714 "cannot allocate memory or input device\n");
1715 goto fail1;
1716 }
1717
1718 aiptek->data = usb_alloc_coherent(usbdev, AIPTEK_PACKET_LENGTH,
1719 GFP_ATOMIC, &aiptek->data_dma);
1720 if (!aiptek->data) {
1721 dev_warn(&intf->dev, "cannot allocate usb buffer\n");
1722 goto fail1;
1723 }
1724
1725 aiptek->urb = usb_alloc_urb(0, GFP_KERNEL);
1726 if (!aiptek->urb) {
1727 dev_warn(&intf->dev, "cannot allocate urb\n");
1728 goto fail2;
1729 }
1730
1731 aiptek->inputdev = inputdev;
1732 aiptek->usbdev = usbdev;
1733 aiptek->intf = intf;
1734 aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber;
1735 aiptek->inDelay = 0;
1736 aiptek->endDelay = 0;
1737 aiptek->previousJitterable = 0;
1738 aiptek->lastMacro = -1;
1739
1740 /* Set up the curSettings struct. Said struct contains the current
1741 * programmable parameters. The newSetting struct contains changes
1742 * the user makes to the settings via the sysfs interface. Those
1743 * changes are not "committed" to curSettings until the user
1744 * writes to the sysfs/.../execute file.
1745 */
1746 aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
1747 aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE;
1748 aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
1749 aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE;
1750 aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE;
1751 aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
1752 aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON;
1753 aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
1754 aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON;
1755 aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON;
1756 aiptek->curSetting.jitterDelay = jitterDelay;
1757 aiptek->curSetting.programmableDelay = programmableDelay;
1758
1759 /* Both structs should have equivalent settings
1760 */
1761 aiptek->newSetting = aiptek->curSetting;
1762
1763 /* Determine the usb devices' physical path.
1764 * Asketh not why we always pretend we're using "../input0",
1765 * but I suspect this will have to be refactored one
1766 * day if a single USB device can be a keyboard & a mouse
1767 * & a tablet, and the inputX number actually will tell
1768 * us something...
1769 */
1770 usb_make_path(usbdev, aiptek->features.usbPath,
1771 sizeof(aiptek->features.usbPath));
1772 strlcat(aiptek->features.usbPath, "/input0",
1773 sizeof(aiptek->features.usbPath));
1774
1775 /* Set up client data, pointers to open and close routines
1776 * for the input device.
1777 */
1778 inputdev->name = "Aiptek";
1779 inputdev->phys = aiptek->features.usbPath;
1780 usb_to_input_id(usbdev, &inputdev->id);
1781 inputdev->dev.parent = &intf->dev;
1782
1783 input_set_drvdata(inputdev, aiptek);
1784
1785 inputdev->open = aiptek_open;
1786 inputdev->close = aiptek_close;
1787
1788 /* Now program the capacities of the tablet, in terms of being
1789 * an input device.
1790 */
1791 for (i = 0; i < ARRAY_SIZE(eventTypes); ++i)
1792 __set_bit(eventTypes[i], inputdev->evbit);
1793
1794 for (i = 0; i < ARRAY_SIZE(absEvents); ++i)
1795 __set_bit(absEvents[i], inputdev->absbit);
1796
1797 for (i = 0; i < ARRAY_SIZE(relEvents); ++i)
1798 __set_bit(relEvents[i], inputdev->relbit);
1799
1800 __set_bit(MSC_SERIAL, inputdev->mscbit);
1801
1802 /* Set up key and button codes */
1803 for (i = 0; i < ARRAY_SIZE(buttonEvents); ++i)
1804 __set_bit(buttonEvents[i], inputdev->keybit);
1805
1806 for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i)
1807 __set_bit(macroKeyEvents[i], inputdev->keybit);
1808
1809 /*
1810 * Program the input device coordinate capacities. We do not yet
1811 * know what maximum X, Y, and Z values are, so we're putting fake
1812 * values in. Later, we'll ask the tablet to put in the correct
1813 * values.
1814 */
1815 input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0);
1816 input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0);
1817 input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0);
1818 input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1819 input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1820 input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
1821
1822 /* Verify that a device really has an endpoint */
1823 if (intf->altsetting[0].desc.bNumEndpoints < 1) {
1824 dev_err(&intf->dev,
1825 "interface has %d endpoints, but must have minimum 1\n",
1826 intf->altsetting[0].desc.bNumEndpoints);
1827 err = -EINVAL;
1828 goto fail3;
1829 }
1830 endpoint = &intf->altsetting[0].endpoint[0].desc;
1831
1832 /* Go set up our URB, which is called when the tablet receives
1833 * input.
1834 */
1835 usb_fill_int_urb(aiptek->urb,
1836 aiptek->usbdev,
1837 usb_rcvintpipe(aiptek->usbdev,
1838 endpoint->bEndpointAddress),
1839 aiptek->data, 8, aiptek_irq, aiptek,
1840 endpoint->bInterval);
1841
1842 aiptek->urb->transfer_dma = aiptek->data_dma;
1843 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1844
1845 /* Program the tablet. This sets the tablet up in the mode
1846 * specified in newSetting, and also queries the tablet's
1847 * physical capacities.
1848 *
1849 * Sanity check: if a tablet doesn't like the slow programmatic
1850 * delay, we often get sizes of 0x0. Let's use that as an indicator
1851 * to try faster delays, up to 25 ms. If that logic fails, well, you'll
1852 * have to explain to us how your tablet thinks it's 0x0, and yet that's
1853 * not an error :-)
1854 */
1855
1856 for (i = 0; i < ARRAY_SIZE(speeds); ++i) {
1857 aiptek->curSetting.programmableDelay = speeds[i];
1858 (void)aiptek_program_tablet(aiptek);
1859 if (input_abs_get_max(aiptek->inputdev, ABS_X) > 0) {
1860 dev_info(&intf->dev,
1861 "Aiptek using %d ms programming speed\n",
1862 aiptek->curSetting.programmableDelay);
1863 break;
1864 }
1865 }
1866
1867 /* Murphy says that some day someone will have a tablet that fails the
1868 above test. That's you, Frederic Rodrigo */
1869 if (i == ARRAY_SIZE(speeds)) {
1870 dev_info(&intf->dev,
1871 "Aiptek tried all speeds, no sane response\n");
1872 err = -EINVAL;
1873 goto fail3;
1874 }
1875
1876 /* Associate this driver's struct with the usb interface.
1877 */
1878 usb_set_intfdata(intf, aiptek);
1879
1880 /* Set up the sysfs files
1881 */
1882 err = sysfs_create_group(&intf->dev.kobj, &aiptek_attribute_group);
1883 if (err) {
1884 dev_warn(&intf->dev, "cannot create sysfs group err: %d\n",
1885 err);
1886 goto fail3;
1887 }
1888
1889 /* Register the tablet as an Input Device
1890 */
1891 err = input_register_device(aiptek->inputdev);
1892 if (err) {
1893 dev_warn(&intf->dev,
1894 "input_register_device returned err: %d\n", err);
1895 goto fail4;
1896 }
1897 return 0;
1898
1899 fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1900 fail3: usb_free_urb(aiptek->urb);
1901 fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
1902 aiptek->data_dma);
1903 fail1: usb_set_intfdata(intf, NULL);
1904 input_free_device(inputdev);
1905 kfree(aiptek);
1906 return err;
1907 }
1908
1909 /***********************************************************************
1910 * Deal with tablet disconnecting from the system.
1911 */
1912 static void aiptek_disconnect(struct usb_interface *intf)
1913 {
1914 struct aiptek *aiptek = usb_get_intfdata(intf);
1915
1916 /* Disassociate driver's struct with usb interface
1917 */
1918 usb_set_intfdata(intf, NULL);
1919 if (aiptek != NULL) {
1920 /* Free & unhook everything from the system.
1921 */
1922 usb_kill_urb(aiptek->urb);
1923 input_unregister_device(aiptek->inputdev);
1924 sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1925 usb_free_urb(aiptek->urb);
1926 usb_free_coherent(interface_to_usbdev(intf),
1927 AIPTEK_PACKET_LENGTH,
1928 aiptek->data, aiptek->data_dma);
1929 kfree(aiptek);
1930 }
1931 }
1932
1933 static struct usb_driver aiptek_driver = {
1934 .name = "aiptek",
1935 .probe = aiptek_probe,
1936 .disconnect = aiptek_disconnect,
1937 .id_table = aiptek_ids,
1938 };
1939
1940 module_usb_driver(aiptek_driver);
1941
1942 MODULE_AUTHOR(DRIVER_AUTHOR);
1943 MODULE_DESCRIPTION(DRIVER_DESC);
1944 MODULE_LICENSE("GPL");
1945
1946 module_param(programmableDelay, int, 0);
1947 MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming");
1948 module_param(jitterDelay, int, 0);
1949 MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay");
Linux kernel - Deliverables
This page took 0.115337 seconds and 6 git commands to generate.