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 282static int programmableDelay = AIPTEK_PROGRAMMABLE_DELAY_DEFAULT; 283static int jitterDelay = AIPTEK_JITTER_DELAY_DEFAULT; 284 285struct 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 292struct 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 308struct 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 329static const int eventTypes[] = { 330 EV_KEY, EV_ABS, EV_REL, EV_MSC, 331}; 332 333static const int absEvents[] = { 334 ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y, 335 ABS_WHEEL, ABS_MISC, 336}; 337 338static const int relEvents[] = { 339 REL_X, REL_Y, REL_WHEEL, 340}; 341 342static 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 */ 354static 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 369struct aiptek_map { 370 const char *string; 371 int value; 372}; 373 374static 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 388static 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 433static 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 812exit: 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 */ 829static 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 841MODULE_DEVICE_TABLE(usb, aiptek_ids); 842 843/*********************************************************************** 844 * Open an instance of the tablet driver. 845 */ 846static 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 */ 860static 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 */ 871static int 872aiptek_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 884static int 885aiptek_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 */ 900static int 901aiptek_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 */ 930static int 931aiptek_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 */ 968static 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 */ 1052static 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 */ 1067static 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 */ 1073static 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 1080static 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 1089static ssize_t 1090store_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 1102static 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 1111static 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 1117static 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 1126static ssize_t 1127store_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 1139static 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 1148static 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 1159static 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 1168static ssize_t 1169store_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 1181static 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 */ 1189static 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 1201static ssize_t 1202store_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 1224static 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 */ 1231static 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 1243static ssize_t 1244store_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 1266static 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 */ 1273static 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 1280static ssize_t 1281store_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 1294static 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 */ 1302static 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 1310static ssize_t 1311store_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 1324static 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 */ 1332static 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 1339static 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 */ 1345static 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 1378static 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 1385static 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 1391static 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 1400static ssize_t 1401store_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 1413static 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 1422static 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 1431static ssize_t 1432store_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 1444static 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 1453static 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 1460static 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 1469static ssize_t 1470store_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 1482static 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 */ 1490static 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 1499static ssize_t 1500store_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 1512static 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 */ 1520static 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 1529static ssize_t 1530store_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 1542static 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 */ 1550static 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 1562static ssize_t 1563store_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 1576static 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 */ 1583static 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 1592static ssize_t 1593store_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 1609static 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 */ 1616static 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 1623static 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 */ 1629static 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 1636static 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 */ 1642static 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 1650static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL); 1651 1652static 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 1676static 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 */ 1684static int 1685aiptek_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 endpoint = &intf->altsetting[0].endpoint[0].desc; 1823 1824 /* Go set up our URB, which is called when the tablet receives 1825 * input. 1826 */ 1827 usb_fill_int_urb(aiptek->urb, 1828 aiptek->usbdev, 1829 usb_rcvintpipe(aiptek->usbdev, 1830 endpoint->bEndpointAddress), 1831 aiptek->data, 8, aiptek_irq, aiptek, 1832 endpoint->bInterval); 1833 1834 aiptek->urb->transfer_dma = aiptek->data_dma; 1835 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1836 1837 /* Program the tablet. This sets the tablet up in the mode 1838 * specified in newSetting, and also queries the tablet's 1839 * physical capacities. 1840 * 1841 * Sanity check: if a tablet doesn't like the slow programmatic 1842 * delay, we often get sizes of 0x0. Let's use that as an indicator 1843 * to try faster delays, up to 25 ms. If that logic fails, well, you'll 1844 * have to explain to us how your tablet thinks it's 0x0, and yet that's 1845 * not an error :-) 1846 */ 1847 1848 for (i = 0; i < ARRAY_SIZE(speeds); ++i) { 1849 aiptek->curSetting.programmableDelay = speeds[i]; 1850 (void)aiptek_program_tablet(aiptek); 1851 if (input_abs_get_max(aiptek->inputdev, ABS_X) > 0) { 1852 dev_info(&intf->dev, 1853 "Aiptek using %d ms programming speed\n", 1854 aiptek->curSetting.programmableDelay); 1855 break; 1856 } 1857 } 1858 1859 /* Murphy says that some day someone will have a tablet that fails the 1860 above test. That's you, Frederic Rodrigo */ 1861 if (i == ARRAY_SIZE(speeds)) { 1862 dev_info(&intf->dev, 1863 "Aiptek tried all speeds, no sane response\n"); 1864 goto fail3; 1865 } 1866 1867 /* Associate this driver's struct with the usb interface. 1868 */ 1869 usb_set_intfdata(intf, aiptek); 1870 1871 /* Set up the sysfs files 1872 */ 1873 err = sysfs_create_group(&intf->dev.kobj, &aiptek_attribute_group); 1874 if (err) { 1875 dev_warn(&intf->dev, "cannot create sysfs group err: %d\n", 1876 err); 1877 goto fail3; 1878 } 1879 1880 /* Register the tablet as an Input Device 1881 */ 1882 err = input_register_device(aiptek->inputdev); 1883 if (err) { 1884 dev_warn(&intf->dev, 1885 "input_register_device returned err: %d\n", err); 1886 goto fail4; 1887 } 1888 return 0; 1889 1890 fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group); 1891 fail3: usb_free_urb(aiptek->urb); 1892 fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data, 1893 aiptek->data_dma); 1894 fail1: usb_set_intfdata(intf, NULL); 1895 input_free_device(inputdev); 1896 kfree(aiptek); 1897 return err; 1898} 1899 1900/*********************************************************************** 1901 * Deal with tablet disconnecting from the system. 1902 */ 1903static void aiptek_disconnect(struct usb_interface *intf) 1904{ 1905 struct aiptek *aiptek = usb_get_intfdata(intf); 1906 1907 /* Disassociate driver's struct with usb interface 1908 */ 1909 usb_set_intfdata(intf, NULL); 1910 if (aiptek != NULL) { 1911 /* Free & unhook everything from the system. 1912 */ 1913 usb_kill_urb(aiptek->urb); 1914 input_unregister_device(aiptek->inputdev); 1915 sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group); 1916 usb_free_urb(aiptek->urb); 1917 usb_free_coherent(interface_to_usbdev(intf), 1918 AIPTEK_PACKET_LENGTH, 1919 aiptek->data, aiptek->data_dma); 1920 kfree(aiptek); 1921 } 1922} 1923 1924static struct usb_driver aiptek_driver = { 1925 .name = "aiptek", 1926 .probe = aiptek_probe, 1927 .disconnect = aiptek_disconnect, 1928 .id_table = aiptek_ids, 1929}; 1930 1931module_usb_driver(aiptek_driver); 1932 1933MODULE_AUTHOR(DRIVER_AUTHOR); 1934MODULE_DESCRIPTION(DRIVER_DESC); 1935MODULE_LICENSE("GPL"); 1936 1937module_param(programmableDelay, int, 0); 1938MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming"); 1939module_param(jitterDelay, int, 0); 1940MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay"); 1941