1 /* 2 * Native support for the Aiptek HyperPen USB Tablets 3 * (4000U/5000U/6000U/8000U/12000U) 4 * 5 * Copyright (c) 2001 Chris Atenasio <chris@crud.net> 6 * Copyright (c) 2002-2004 Bryan W. Headley <bwheadley@earthlink.net> 7 * 8 * based on wacom.c by 9 * Vojtech Pavlik <vojtech@suse.cz> 10 * Andreas Bach Aaen <abach@stofanet.dk> 11 * Clifford Wolf <clifford@clifford.at> 12 * Sam Mosel <sam.mosel@computer.org> 13 * James E. Blair <corvus@gnu.org> 14 * Daniel Egger <egger@suse.de> 15 * 16 * Many thanks to Oliver Kuechemann for his support. 17 * 18 * ChangeLog: 19 * v0.1 - Initial release 20 * v0.2 - Hack to get around fake event 28's. (Bryan W. Headley) 21 * v0.3 - Make URB dynamic (Bryan W. Headley, Jun-8-2002) 22 * Released to Linux 2.4.19 and 2.5.x 23 * v0.4 - Rewrote substantial portions of the code to deal with 24 * corrected control sequences, timing, dynamic configuration, 25 * support of 6000U - 12000U, procfs, and macro key support 26 * (Jan-1-2003 - Feb-5-2003, Bryan W. Headley) 27 * v1.0 - Added support for diagnostic messages, count of messages 28 * received from URB - Mar-8-2003, Bryan W. Headley 29 * v1.1 - added support for tablet resolution, changed DV and proximity 30 * some corrections - Jun-22-2003, martin schneebacher 31 * - Added support for the sysfs interface, deprecating the 32 * procfs interface for 2.5.x kernel. Also added support for 33 * Wheel command. Bryan W. Headley July-15-2003. 34 * v1.2 - Reworked jitter timer as a kernel thread. 35 * Bryan W. Headley November-28-2003/Jan-10-2004. 36 * v1.3 - Repaired issue of kernel thread going nuts on single-processor 37 * machines, introduced programmableDelay as a command line 38 * parameter. Feb 7 2004, Bryan W. Headley. 39 * v1.4 - Re-wire jitter so it does not require a thread. Courtesy of 40 * Rene van Paassen. Added reporting of physical pointer device 41 * (e.g., stylus, mouse in reports 2, 3, 4, 5. We don't know 42 * for reports 1, 6.) 43 * what physical device reports for reports 1, 6.) Also enabled 44 * MOUSE and LENS tool button modes. Renamed "rubber" to "eraser". 45 * Feb 20, 2004, Bryan W. Headley. 46 * v1.5 - Added previousJitterable, so we don't do jitter delay when the 47 * user is holding a button down for periods of time. 48 * 49 * NOTE: 50 * This kernel driver is augmented by the "Aiptek" XFree86 input 51 * driver for your X server, as well as the Gaiptek GUI Front-end 52 * "Tablet Manager". 53 * These three products are highly interactive with one another, 54 * so therefore it's easier to document them all as one subsystem. 55 * Please visit the project's "home page", located at, 56 * http://aiptektablet.sourceforge.net. 57 * 58 * This program is free software; you can redistribute it and/or modify 59 * it under the terms of the GNU General Public License as published by 60 * the Free Software Foundation; either version 2 of the License, or 61 * (at your option) any later version. 62 * 63 * This program is distributed in the hope that it will be useful, 64 * but WITHOUT ANY WARRANTY; without even the implied warranty of 65 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 66 * GNU General Public License for more details. 67 * 68 * You should have received a copy of the GNU General Public License 69 * along with this program; if not, write to the Free Software 70 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 71 */ 72 73 #include <linux/jiffies.h> 74 #include <linux/kernel.h> 75 #include <linux/slab.h> 76 #include <linux/module.h> 77 #include <linux/init.h> 78 #include <linux/usb/input.h> 79 #include <asm/uaccess.h> 80 #include <asm/unaligned.h> 81 82 /* 83 * Version Information 84 */ 85 #define DRIVER_VERSION "v2.3 (May 2, 2007)" 86 #define DRIVER_AUTHOR "Bryan W. Headley/Chris Atenasio/Cedric Brun/Rene van Paassen" 87 #define DRIVER_DESC "Aiptek HyperPen USB Tablet Driver (Linux 2.6.x)" 88 89 /* 90 * Aiptek status packet: 91 * 92 * (returned as Report 1 - relative coordinates from mouse and stylus) 93 * 94 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 95 * byte0 0 0 0 0 0 0 0 1 96 * byte1 0 0 0 0 0 BS2 BS Tip 97 * byte2 X7 X6 X5 X4 X3 X2 X1 X0 98 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 99 * 100 * (returned as Report 2 - absolute coordinates from the stylus) 101 * 102 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 103 * byte0 0 0 0 0 0 0 1 0 104 * byte1 X7 X6 X5 X4 X3 X2 X1 X0 105 * byte2 X15 X14 X13 X12 X11 X10 X9 X8 106 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 107 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8 108 * byte5 * * * BS2 BS1 Tip IR DV 109 * byte6 P7 P6 P5 P4 P3 P2 P1 P0 110 * byte7 P15 P14 P13 P12 P11 P10 P9 P8 111 * 112 * (returned as Report 3 - absolute coordinates from the mouse) 113 * 114 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 115 * byte0 0 0 0 0 0 0 1 1 116 * byte1 X7 X6 X5 X4 X3 X2 X1 X0 117 * byte2 X15 X14 X13 X12 X11 X10 X9 X8 118 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 119 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8 120 * byte5 * * * BS2 BS1 Tip IR DV 121 * byte6 P7 P6 P5 P4 P3 P2 P1 P0 122 * byte7 P15 P14 P13 P12 P11 P10 P9 P8 123 * 124 * (returned as Report 4 - macrokeys from the stylus) 125 * 126 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 127 * byte0 0 0 0 0 0 1 0 0 128 * byte1 0 0 0 BS2 BS Tip IR DV 129 * byte2 0 0 0 0 0 0 1 0 130 * byte3 0 0 0 K4 K3 K2 K1 K0 131 * byte4 P7 P6 P5 P4 P3 P2 P1 P0 132 * byte5 P15 P14 P13 P12 P11 P10 P9 P8 133 * 134 * (returned as Report 5 - macrokeys from the mouse) 135 * 136 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 137 * byte0 0 0 0 0 0 1 0 1 138 * byte1 0 0 0 BS2 BS Tip IR DV 139 * byte2 0 0 0 0 0 0 1 0 140 * byte3 0 0 0 K4 K3 K2 K1 K0 141 * byte4 P7 P6 P5 P4 P3 P2 P1 P0 142 * byte5 P15 P14 P13 P12 P11 P10 P9 P8 143 * 144 * IR: In Range = Proximity on 145 * DV = Data Valid 146 * BS = Barrel Switch (as in, macro keys) 147 * BS2 also referred to as Tablet Pick 148 * 149 * Command Summary: 150 * 151 * Use report_type CONTROL (3) 152 * Use report_id 2 153 * 154 * Command/Data Description Return Bytes Return Value 155 * 0x10/0x00 SwitchToMouse 0 156 * 0x10/0x01 SwitchToTablet 0 157 * 0x18/0x04 SetResolution 0 158 * 0x12/0xFF AutoGainOn 0 159 * 0x17/0x00 FilterOn 0 160 * 0x01/0x00 GetXExtension 2 MaxX 161 * 0x01/0x01 GetYExtension 2 MaxY 162 * 0x02/0x00 GetModelCode 2 ModelCode = LOBYTE 163 * 0x03/0x00 GetODMCode 2 ODMCode 164 * 0x08/0x00 GetPressureLevels 2 =512 165 * 0x04/0x00 GetFirmwareVersion 2 Firmware Version 166 * 0x11/0x02 EnableMacroKeys 0 167 * 168 * To initialize the tablet: 169 * 170 * (1) Send Resolution500LPI (Command) 171 * (2) Query for Model code (Option Report) 172 * (3) Query for ODM code (Option Report) 173 * (4) Query for firmware (Option Report) 174 * (5) Query for GetXExtension (Option Report) 175 * (6) Query for GetYExtension (Option Report) 176 * (7) Query for GetPressureLevels (Option Report) 177 * (8) SwitchToTablet for Absolute coordinates, or 178 * SwitchToMouse for Relative coordinates (Command) 179 * (9) EnableMacroKeys (Command) 180 * (10) FilterOn (Command) 181 * (11) AutoGainOn (Command) 182 * 183 * (Step 9 can be omitted, but you'll then have no function keys.) 184 */ 185 186 #define USB_VENDOR_ID_AIPTEK 0x08ca 187 #define USB_VENDOR_ID_KYE 0x0458 188 #define USB_REQ_GET_REPORT 0x01 189 #define USB_REQ_SET_REPORT 0x09 190 191 /* PointerMode codes 192 */ 193 #define AIPTEK_POINTER_ONLY_MOUSE_MODE 0 194 #define AIPTEK_POINTER_ONLY_STYLUS_MODE 1 195 #define AIPTEK_POINTER_EITHER_MODE 2 196 197 #define AIPTEK_POINTER_ALLOW_MOUSE_MODE(a) \ 198 (a == AIPTEK_POINTER_ONLY_MOUSE_MODE || \ 199 a == AIPTEK_POINTER_EITHER_MODE) 200 #define AIPTEK_POINTER_ALLOW_STYLUS_MODE(a) \ 201 (a == AIPTEK_POINTER_ONLY_STYLUS_MODE || \ 202 a == AIPTEK_POINTER_EITHER_MODE) 203 204 /* CoordinateMode code 205 */ 206 #define AIPTEK_COORDINATE_RELATIVE_MODE 0 207 #define AIPTEK_COORDINATE_ABSOLUTE_MODE 1 208 209 /* XTilt and YTilt values 210 */ 211 #define AIPTEK_TILT_MIN (-128) 212 #define AIPTEK_TILT_MAX 127 213 #define AIPTEK_TILT_DISABLE (-10101) 214 215 /* Wheel values 216 */ 217 #define AIPTEK_WHEEL_MIN 0 218 #define AIPTEK_WHEEL_MAX 1024 219 #define AIPTEK_WHEEL_DISABLE (-10101) 220 221 /* ToolCode values, which BTW are 0x140 .. 0x14f 222 * We have things set up such that if the tool button has changed, 223 * the tools get reset. 224 */ 225 /* toolMode codes 226 */ 227 #define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN 228 #define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN 229 #define AIPTEK_TOOL_BUTTON_PENCIL_MODE BTN_TOOL_PENCIL 230 #define AIPTEK_TOOL_BUTTON_BRUSH_MODE BTN_TOOL_BRUSH 231 #define AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE BTN_TOOL_AIRBRUSH 232 #define AIPTEK_TOOL_BUTTON_ERASER_MODE BTN_TOOL_RUBBER 233 #define AIPTEK_TOOL_BUTTON_MOUSE_MODE BTN_TOOL_MOUSE 234 #define AIPTEK_TOOL_BUTTON_LENS_MODE BTN_TOOL_LENS 235 236 /* Diagnostic message codes 237 */ 238 #define AIPTEK_DIAGNOSTIC_NA 0 239 #define AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE 1 240 #define AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE 2 241 #define AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED 3 242 243 /* Time to wait (in ms) to help mask hand jittering 244 * when pressing the stylus buttons. 245 */ 246 #define AIPTEK_JITTER_DELAY_DEFAULT 50 247 248 /* Time to wait (in ms) in-between sending the tablet 249 * a command and beginning the process of reading the return 250 * sequence from the tablet. 251 */ 252 #define AIPTEK_PROGRAMMABLE_DELAY_25 25 253 #define AIPTEK_PROGRAMMABLE_DELAY_50 50 254 #define AIPTEK_PROGRAMMABLE_DELAY_100 100 255 #define AIPTEK_PROGRAMMABLE_DELAY_200 200 256 #define AIPTEK_PROGRAMMABLE_DELAY_300 300 257 #define AIPTEK_PROGRAMMABLE_DELAY_400 400 258 #define AIPTEK_PROGRAMMABLE_DELAY_DEFAULT AIPTEK_PROGRAMMABLE_DELAY_400 259 260 /* Mouse button programming 261 */ 262 #define AIPTEK_MOUSE_LEFT_BUTTON 0x04 263 #define AIPTEK_MOUSE_RIGHT_BUTTON 0x08 264 #define AIPTEK_MOUSE_MIDDLE_BUTTON 0x10 265 266 /* Stylus button programming 267 */ 268 #define AIPTEK_STYLUS_LOWER_BUTTON 0x08 269 #define AIPTEK_STYLUS_UPPER_BUTTON 0x10 270 271 /* Length of incoming packet from the tablet 272 */ 273 #define AIPTEK_PACKET_LENGTH 8 274 275 /* We report in EV_MISC both the proximity and 276 * whether the report came from the stylus, tablet mouse 277 * or "unknown" -- Unknown when the tablet is in relative 278 * mode, because we only get report 1's. 279 */ 280 #define AIPTEK_REPORT_TOOL_UNKNOWN 0x10 281 #define AIPTEK_REPORT_TOOL_STYLUS 0x20 282 #define AIPTEK_REPORT_TOOL_MOUSE 0x40 283 284 static int programmableDelay = AIPTEK_PROGRAMMABLE_DELAY_DEFAULT; 285 static int jitterDelay = AIPTEK_JITTER_DELAY_DEFAULT; 286 287 struct aiptek_features { 288 int odmCode; /* Tablet manufacturer code */ 289 int modelCode; /* Tablet model code (not unique) */ 290 int firmwareCode; /* prom/eeprom version */ 291 char usbPath[64 + 1]; /* device's physical usb path */ 292 }; 293 294 struct aiptek_settings { 295 int pointerMode; /* stylus-, mouse-only or either */ 296 int coordinateMode; /* absolute/relative coords */ 297 int toolMode; /* pen, pencil, brush, etc. tool */ 298 int xTilt; /* synthetic xTilt amount */ 299 int yTilt; /* synthetic yTilt amount */ 300 int wheel; /* synthetic wheel amount */ 301 int stylusButtonUpper; /* stylus upper btn delivers... */ 302 int stylusButtonLower; /* stylus lower btn delivers... */ 303 int mouseButtonLeft; /* mouse left btn delivers... */ 304 int mouseButtonMiddle; /* mouse middle btn delivers... */ 305 int mouseButtonRight; /* mouse right btn delivers... */ 306 int programmableDelay; /* delay for tablet programming */ 307 int jitterDelay; /* delay for hand jittering */ 308 }; 309 310 struct aiptek { 311 struct input_dev *inputdev; /* input device struct */ 312 struct usb_device *usbdev; /* usb device struct */ 313 struct urb *urb; /* urb for incoming reports */ 314 dma_addr_t data_dma; /* our dma stuffage */ 315 struct aiptek_features features; /* tablet's array of features */ 316 struct aiptek_settings curSetting; /* tablet's current programmable */ 317 struct aiptek_settings newSetting; /* ... and new param settings */ 318 unsigned int ifnum; /* interface number for IO */ 319 int diagnostic; /* tablet diagnostic codes */ 320 unsigned long eventCount; /* event count */ 321 int inDelay; /* jitter: in jitter delay? */ 322 unsigned long endDelay; /* jitter: time when delay ends */ 323 int previousJitterable; /* jitterable prev value */ 324 325 int lastMacro; /* macro key to reset */ 326 int previousToolMode; /* pen, pencil, brush, etc. tool */ 327 unsigned char *data; /* incoming packet data */ 328 }; 329 330 static const int eventTypes[] = { 331 EV_KEY, EV_ABS, EV_REL, EV_MSC, 332 }; 333 334 static const int absEvents[] = { 335 ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y, 336 ABS_WHEEL, ABS_MISC, 337 }; 338 339 static const int relEvents[] = { 340 REL_X, REL_Y, REL_WHEEL, 341 }; 342 343 static const int buttonEvents[] = { 344 BTN_LEFT, BTN_RIGHT, BTN_MIDDLE, 345 BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_PENCIL, BTN_TOOL_AIRBRUSH, 346 BTN_TOOL_BRUSH, BTN_TOOL_MOUSE, BTN_TOOL_LENS, BTN_TOUCH, 347 BTN_STYLUS, BTN_STYLUS2, 348 }; 349 350 /* 351 * Permit easy lookup of keyboard events to send, versus 352 * the bitmap which comes from the tablet. This hides the 353 * issue that the F_keys are not sequentially numbered. 354 */ 355 static const int macroKeyEvents[] = { 356 KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, 357 KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, 358 KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17, 359 KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23, 360 KEY_F24, KEY_STOP, KEY_AGAIN, KEY_PROPS, KEY_UNDO, 361 KEY_FRONT, KEY_COPY, KEY_OPEN, KEY_PASTE, 0 362 }; 363 364 /*********************************************************************** 365 * Map values to strings and back. Every map shoudl have the following 366 * as its last element: { NULL, AIPTEK_INVALID_VALUE }. 367 */ 368 #define AIPTEK_INVALID_VALUE -1 369 370 struct aiptek_map { 371 const char *string; 372 int value; 373 }; 374 375 static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t count) 376 { 377 const struct aiptek_map *p; 378 379 if (str[count - 1] == '\n') 380 count--; 381 382 for (p = map; p->string; p++) 383 if (!strncmp(str, p->string, count)) 384 return p->value; 385 386 return AIPTEK_INVALID_VALUE; 387 } 388 389 static const char *map_val_to_str(const struct aiptek_map *map, int val) 390 { 391 const struct aiptek_map *p; 392 393 for (p = map; p->value != AIPTEK_INVALID_VALUE; p++) 394 if (val == p->value) 395 return p->string; 396 397 return "unknown"; 398 } 399 400 /*********************************************************************** 401 * aiptek_irq can receive one of six potential reports. 402 * The documentation for each is in the body of the function. 403 * 404 * The tablet reports on several attributes per invocation of 405 * aiptek_irq. Because the Linux Input Event system allows the 406 * transmission of ONE attribute per input_report_xxx() call, 407 * collation has to be done on the other end to reconstitute 408 * a complete tablet report. Further, the number of Input Event reports 409 * submitted varies, depending on what USB report type, and circumstance. 410 * To deal with this, EV_MSC is used to indicate an 'end-of-report' 411 * message. This has been an undocumented convention understood by the kernel 412 * tablet driver and clients such as gpm and XFree86's tablet drivers. 413 * 414 * Of the information received from the tablet, the one piece I 415 * cannot transmit is the proximity bit (without resorting to an EV_MSC 416 * convention above.) I therefore have taken over REL_MISC and ABS_MISC 417 * (for relative and absolute reports, respectively) for communicating 418 * Proximity. Why two events? I thought it interesting to know if the 419 * Proximity event occurred while the tablet was in absolute or relative 420 * mode. 421 * Update: REL_MISC proved not to be such a good idea. With REL_MISC you 422 * get an event transmitted each time. ABS_MISC works better, since it 423 * can be set and re-set. Thus, only using ABS_MISC from now on. 424 * 425 * Other tablets use the notion of a certain minimum stylus pressure 426 * to infer proximity. While that could have been done, that is yet 427 * another 'by convention' behavior, the documentation for which 428 * would be spread between two (or more) pieces of software. 429 * 430 * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and 431 * replaced with the input_sync() method (which emits EV_SYN.) 432 */ 433 434 static void aiptek_irq(struct urb *urb) 435 { 436 struct aiptek *aiptek = urb->context; 437 unsigned char *data = aiptek->data; 438 struct input_dev *inputdev = aiptek->inputdev; 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 dbg("%s - urb shutting down with status: %d", 452 __func__, urb->status); 453 return; 454 455 default: 456 dbg("%s - nonzero urb status received: %d", 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 dbg("Unknown report %d", 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 err("%s - usb_submit_urb failed with result %d", 816 __func__, retval); 817 } 818 } 819 820 /*********************************************************************** 821 * These are the USB id's known so far. We do not identify them to 822 * specific Aiptek model numbers, because there has been overlaps, 823 * use, and reuse of id's in existing models. Certain models have 824 * been known to use more than one ID, indicative perhaps of 825 * manufacturing revisions. In any event, we consider these 826 * IDs to not be model-specific nor unique. 827 */ 828 static const struct usb_device_id aiptek_ids[] = { 829 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)}, 830 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)}, 831 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)}, 832 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)}, 833 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)}, 834 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)}, 835 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)}, 836 {USB_DEVICE(USB_VENDOR_ID_KYE, 0x5003)}, 837 {} 838 }; 839 840 MODULE_DEVICE_TABLE(usb, aiptek_ids); 841 842 /*********************************************************************** 843 * Open an instance of the tablet driver. 844 */ 845 static int aiptek_open(struct input_dev *inputdev) 846 { 847 struct aiptek *aiptek = input_get_drvdata(inputdev); 848 849 aiptek->urb->dev = aiptek->usbdev; 850 if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0) 851 return -EIO; 852 853 return 0; 854 } 855 856 /*********************************************************************** 857 * Close an instance of the tablet driver. 858 */ 859 static void aiptek_close(struct input_dev *inputdev) 860 { 861 struct aiptek *aiptek = input_get_drvdata(inputdev); 862 863 usb_kill_urb(aiptek->urb); 864 } 865 866 /*********************************************************************** 867 * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x, 868 * where they were known as usb_set_report and usb_get_report. 869 */ 870 static int 871 aiptek_set_report(struct aiptek *aiptek, 872 unsigned char report_type, 873 unsigned char report_id, void *buffer, int size) 874 { 875 return usb_control_msg(aiptek->usbdev, 876 usb_sndctrlpipe(aiptek->usbdev, 0), 877 USB_REQ_SET_REPORT, 878 USB_TYPE_CLASS | USB_RECIP_INTERFACE | 879 USB_DIR_OUT, (report_type << 8) + report_id, 880 aiptek->ifnum, buffer, size, 5000); 881 } 882 883 static int 884 aiptek_get_report(struct aiptek *aiptek, 885 unsigned char report_type, 886 unsigned char report_id, void *buffer, int size) 887 { 888 return usb_control_msg(aiptek->usbdev, 889 usb_rcvctrlpipe(aiptek->usbdev, 0), 890 USB_REQ_GET_REPORT, 891 USB_TYPE_CLASS | USB_RECIP_INTERFACE | 892 USB_DIR_IN, (report_type << 8) + report_id, 893 aiptek->ifnum, buffer, size, 5000); 894 } 895 896 /*********************************************************************** 897 * Send a command to the tablet. 898 */ 899 static int 900 aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data) 901 { 902 const int sizeof_buf = 3 * sizeof(u8); 903 int ret; 904 u8 *buf; 905 906 buf = kmalloc(sizeof_buf, GFP_KERNEL); 907 if (!buf) 908 return -ENOMEM; 909 910 buf[0] = 2; 911 buf[1] = command; 912 buf[2] = data; 913 914 if ((ret = 915 aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) { 916 dbg("aiptek_program: failed, tried to send: 0x%02x 0x%02x", 917 command, data); 918 } 919 kfree(buf); 920 return ret < 0 ? ret : 0; 921 } 922 923 /*********************************************************************** 924 * Retrieve information from the tablet. Querying info is defined as first 925 * sending the {command,data} sequence as a command, followed by a wait 926 * (aka, "programmaticDelay") and then a "read" request. 927 */ 928 static int 929 aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data) 930 { 931 const int sizeof_buf = 3 * sizeof(u8); 932 int ret; 933 u8 *buf; 934 935 buf = kmalloc(sizeof_buf, GFP_KERNEL); 936 if (!buf) 937 return -ENOMEM; 938 939 buf[0] = 2; 940 buf[1] = command; 941 buf[2] = data; 942 943 if (aiptek_command(aiptek, command, data) != 0) { 944 kfree(buf); 945 return -EIO; 946 } 947 msleep(aiptek->curSetting.programmableDelay); 948 949 if ((ret = 950 aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) { 951 dbg("aiptek_query failed: returned 0x%02x 0x%02x 0x%02x", 952 buf[0], buf[1], buf[2]); 953 ret = -EIO; 954 } else { 955 ret = get_unaligned_le16(buf + 1); 956 } 957 kfree(buf); 958 return ret; 959 } 960 961 /*********************************************************************** 962 * Program the tablet into either absolute or relative mode. 963 * We also get information about the tablet's size. 964 */ 965 static int aiptek_program_tablet(struct aiptek *aiptek) 966 { 967 int ret; 968 /* Execute Resolution500LPI */ 969 if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0) 970 return ret; 971 972 /* Query getModelCode */ 973 if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0) 974 return ret; 975 aiptek->features.modelCode = ret & 0xff; 976 977 /* Query getODMCode */ 978 if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0) 979 return ret; 980 aiptek->features.odmCode = ret; 981 982 /* Query getFirmwareCode */ 983 if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0) 984 return ret; 985 aiptek->features.firmwareCode = ret; 986 987 /* Query getXextension */ 988 if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0) 989 return ret; 990 aiptek->inputdev->absmin[ABS_X] = 0; 991 aiptek->inputdev->absmax[ABS_X] = ret - 1; 992 993 /* Query getYextension */ 994 if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0) 995 return ret; 996 aiptek->inputdev->absmin[ABS_Y] = 0; 997 aiptek->inputdev->absmax[ABS_Y] = ret - 1; 998 999 /* Query getPressureLevels */ 1000 if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0) 1001 return ret; 1002 aiptek->inputdev->absmin[ABS_PRESSURE] = 0; 1003 aiptek->inputdev->absmax[ABS_PRESSURE] = ret - 1; 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 aiptek->inputdev->absmax[ABS_X] + 1, 1058 aiptek->inputdev->absmax[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_IWUGO, 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_IWUGO, 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_IWUGO, 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 long x; 1206 1207 if (strict_strtol(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_IWUGO, 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 long y; 1248 1249 if (strict_strtol(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_IWUGO, 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 long j; 1285 1286 if (strict_strtol(buf, 10, &j)) 1287 return -EINVAL; 1288 1289 aiptek->newSetting.jitterDelay = (int)j; 1290 return count; 1291 } 1292 1293 static DEVICE_ATTR(jitter, 1294 S_IRUGO | S_IWUGO, 1295 show_tabletJitterDelay, store_tabletJitterDelay); 1296 1297 /*********************************************************************** 1298 * support routines for the 'delay' file. Note that this file 1299 * both displays current setting and allows reprogramming. 1300 */ 1301 static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf) 1302 { 1303 struct aiptek *aiptek = dev_get_drvdata(dev); 1304 1305 return snprintf(buf, PAGE_SIZE, "%d\n", 1306 aiptek->curSetting.programmableDelay); 1307 } 1308 1309 static ssize_t 1310 store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1311 { 1312 struct aiptek *aiptek = dev_get_drvdata(dev); 1313 long d; 1314 1315 if (strict_strtol(buf, 10, &d)) 1316 return -EINVAL; 1317 1318 aiptek->newSetting.programmableDelay = (int)d; 1319 return count; 1320 } 1321 1322 static DEVICE_ATTR(delay, 1323 S_IRUGO | S_IWUGO, 1324 show_tabletProgrammableDelay, store_tabletProgrammableDelay); 1325 1326 /*********************************************************************** 1327 * support routines for the 'event_count' file. Note that this file 1328 * only displays current setting. 1329 */ 1330 static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf) 1331 { 1332 struct aiptek *aiptek = dev_get_drvdata(dev); 1333 1334 return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount); 1335 } 1336 1337 static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL); 1338 1339 /*********************************************************************** 1340 * support routines for the 'diagnostic' file. Note that this file 1341 * only displays current setting. 1342 */ 1343 static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf) 1344 { 1345 struct aiptek *aiptek = dev_get_drvdata(dev); 1346 char *retMsg; 1347 1348 switch (aiptek->diagnostic) { 1349 case AIPTEK_DIAGNOSTIC_NA: 1350 retMsg = "no errors\n"; 1351 break; 1352 1353 case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE: 1354 retMsg = "Error: receiving relative reports\n"; 1355 break; 1356 1357 case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE: 1358 retMsg = "Error: receiving absolute reports\n"; 1359 break; 1360 1361 case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED: 1362 if (aiptek->curSetting.pointerMode == 1363 AIPTEK_POINTER_ONLY_MOUSE_MODE) { 1364 retMsg = "Error: receiving stylus reports\n"; 1365 } else { 1366 retMsg = "Error: receiving mouse reports\n"; 1367 } 1368 break; 1369 1370 default: 1371 return 0; 1372 } 1373 return snprintf(buf, PAGE_SIZE, retMsg); 1374 } 1375 1376 static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL); 1377 1378 /*********************************************************************** 1379 * support routines for the 'stylus_upper' file. Note that this file 1380 * both displays current setting and allows for setting changing. 1381 */ 1382 1383 static struct aiptek_map stylus_button_map[] = { 1384 { "upper", AIPTEK_STYLUS_UPPER_BUTTON }, 1385 { "lower", AIPTEK_STYLUS_LOWER_BUTTON }, 1386 { NULL, AIPTEK_INVALID_VALUE } 1387 }; 1388 1389 static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf) 1390 { 1391 struct aiptek *aiptek = dev_get_drvdata(dev); 1392 1393 return snprintf(buf, PAGE_SIZE, "%s\n", 1394 map_val_to_str(stylus_button_map, 1395 aiptek->curSetting.stylusButtonUpper)); 1396 } 1397 1398 static ssize_t 1399 store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1400 { 1401 struct aiptek *aiptek = dev_get_drvdata(dev); 1402 int new_button = map_str_to_val(stylus_button_map, buf, count); 1403 1404 if (new_button == AIPTEK_INVALID_VALUE) 1405 return -EINVAL; 1406 1407 aiptek->newSetting.stylusButtonUpper = new_button; 1408 return count; 1409 } 1410 1411 static DEVICE_ATTR(stylus_upper, 1412 S_IRUGO | S_IWUGO, 1413 show_tabletStylusUpper, store_tabletStylusUpper); 1414 1415 /*********************************************************************** 1416 * support routines for the 'stylus_lower' file. Note that this file 1417 * both displays current setting and allows for setting changing. 1418 */ 1419 1420 static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf) 1421 { 1422 struct aiptek *aiptek = dev_get_drvdata(dev); 1423 1424 return snprintf(buf, PAGE_SIZE, "%s\n", 1425 map_val_to_str(stylus_button_map, 1426 aiptek->curSetting.stylusButtonLower)); 1427 } 1428 1429 static ssize_t 1430 store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1431 { 1432 struct aiptek *aiptek = dev_get_drvdata(dev); 1433 int new_button = map_str_to_val(stylus_button_map, buf, count); 1434 1435 if (new_button == AIPTEK_INVALID_VALUE) 1436 return -EINVAL; 1437 1438 aiptek->newSetting.stylusButtonLower = new_button; 1439 return count; 1440 } 1441 1442 static DEVICE_ATTR(stylus_lower, 1443 S_IRUGO | S_IWUGO, 1444 show_tabletStylusLower, store_tabletStylusLower); 1445 1446 /*********************************************************************** 1447 * support routines for the 'mouse_left' file. Note that this file 1448 * both displays current setting and allows for setting changing. 1449 */ 1450 1451 static struct aiptek_map mouse_button_map[] = { 1452 { "left", AIPTEK_MOUSE_LEFT_BUTTON }, 1453 { "middle", AIPTEK_MOUSE_MIDDLE_BUTTON }, 1454 { "right", AIPTEK_MOUSE_RIGHT_BUTTON }, 1455 { NULL, AIPTEK_INVALID_VALUE } 1456 }; 1457 1458 static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf) 1459 { 1460 struct aiptek *aiptek = dev_get_drvdata(dev); 1461 1462 return snprintf(buf, PAGE_SIZE, "%s\n", 1463 map_val_to_str(mouse_button_map, 1464 aiptek->curSetting.mouseButtonLeft)); 1465 } 1466 1467 static ssize_t 1468 store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1469 { 1470 struct aiptek *aiptek = dev_get_drvdata(dev); 1471 int new_button = map_str_to_val(mouse_button_map, buf, count); 1472 1473 if (new_button == AIPTEK_INVALID_VALUE) 1474 return -EINVAL; 1475 1476 aiptek->newSetting.mouseButtonLeft = new_button; 1477 return count; 1478 } 1479 1480 static DEVICE_ATTR(mouse_left, 1481 S_IRUGO | S_IWUGO, 1482 show_tabletMouseLeft, store_tabletMouseLeft); 1483 1484 /*********************************************************************** 1485 * support routines for the 'mouse_middle' file. Note that this file 1486 * both displays current setting and allows for setting changing. 1487 */ 1488 static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf) 1489 { 1490 struct aiptek *aiptek = dev_get_drvdata(dev); 1491 1492 return snprintf(buf, PAGE_SIZE, "%s\n", 1493 map_val_to_str(mouse_button_map, 1494 aiptek->curSetting.mouseButtonMiddle)); 1495 } 1496 1497 static ssize_t 1498 store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1499 { 1500 struct aiptek *aiptek = dev_get_drvdata(dev); 1501 int new_button = map_str_to_val(mouse_button_map, buf, count); 1502 1503 if (new_button == AIPTEK_INVALID_VALUE) 1504 return -EINVAL; 1505 1506 aiptek->newSetting.mouseButtonMiddle = new_button; 1507 return count; 1508 } 1509 1510 static DEVICE_ATTR(mouse_middle, 1511 S_IRUGO | S_IWUGO, 1512 show_tabletMouseMiddle, store_tabletMouseMiddle); 1513 1514 /*********************************************************************** 1515 * support routines for the 'mouse_right' file. Note that this file 1516 * both displays current setting and allows for setting changing. 1517 */ 1518 static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf) 1519 { 1520 struct aiptek *aiptek = dev_get_drvdata(dev); 1521 1522 return snprintf(buf, PAGE_SIZE, "%s\n", 1523 map_val_to_str(mouse_button_map, 1524 aiptek->curSetting.mouseButtonRight)); 1525 } 1526 1527 static ssize_t 1528 store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1529 { 1530 struct aiptek *aiptek = dev_get_drvdata(dev); 1531 int new_button = map_str_to_val(mouse_button_map, buf, count); 1532 1533 if (new_button == AIPTEK_INVALID_VALUE) 1534 return -EINVAL; 1535 1536 aiptek->newSetting.mouseButtonRight = new_button; 1537 return count; 1538 } 1539 1540 static DEVICE_ATTR(mouse_right, 1541 S_IRUGO | S_IWUGO, 1542 show_tabletMouseRight, store_tabletMouseRight); 1543 1544 /*********************************************************************** 1545 * support routines for the 'wheel' file. Note that this file 1546 * both displays current setting and allows for setting changing. 1547 */ 1548 static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf) 1549 { 1550 struct aiptek *aiptek = dev_get_drvdata(dev); 1551 1552 if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) { 1553 return snprintf(buf, PAGE_SIZE, "disable\n"); 1554 } else { 1555 return snprintf(buf, PAGE_SIZE, "%d\n", 1556 aiptek->curSetting.wheel); 1557 } 1558 } 1559 1560 static ssize_t 1561 store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1562 { 1563 struct aiptek *aiptek = dev_get_drvdata(dev); 1564 long w; 1565 1566 if (strict_strtol(buf, 10, &w)) return -EINVAL; 1567 1568 aiptek->newSetting.wheel = (int)w; 1569 return count; 1570 } 1571 1572 static DEVICE_ATTR(wheel, 1573 S_IRUGO | S_IWUGO, show_tabletWheel, store_tabletWheel); 1574 1575 /*********************************************************************** 1576 * support routines for the 'execute' file. Note that this file 1577 * both displays current setting and allows for setting changing. 1578 */ 1579 static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf) 1580 { 1581 /* There is nothing useful to display, so a one-line manual 1582 * is in order... 1583 */ 1584 return snprintf(buf, PAGE_SIZE, 1585 "Write anything to this file to program your tablet.\n"); 1586 } 1587 1588 static ssize_t 1589 store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1590 { 1591 struct aiptek *aiptek = dev_get_drvdata(dev); 1592 1593 /* We do not care what you write to this file. Merely the action 1594 * of writing to this file triggers a tablet reprogramming. 1595 */ 1596 memcpy(&aiptek->curSetting, &aiptek->newSetting, 1597 sizeof(struct aiptek_settings)); 1598 1599 if (aiptek_program_tablet(aiptek) < 0) 1600 return -EIO; 1601 1602 return count; 1603 } 1604 1605 static DEVICE_ATTR(execute, 1606 S_IRUGO | S_IWUGO, show_tabletExecute, store_tabletExecute); 1607 1608 /*********************************************************************** 1609 * support routines for the 'odm_code' file. Note that this file 1610 * only displays current setting. 1611 */ 1612 static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf) 1613 { 1614 struct aiptek *aiptek = dev_get_drvdata(dev); 1615 1616 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode); 1617 } 1618 1619 static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL); 1620 1621 /*********************************************************************** 1622 * support routines for the 'model_code' file. Note that this file 1623 * only displays current setting. 1624 */ 1625 static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf) 1626 { 1627 struct aiptek *aiptek = dev_get_drvdata(dev); 1628 1629 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode); 1630 } 1631 1632 static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL); 1633 1634 /*********************************************************************** 1635 * support routines for the 'firmware_code' file. Note that this file 1636 * only displays current setting. 1637 */ 1638 static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf) 1639 { 1640 struct aiptek *aiptek = dev_get_drvdata(dev); 1641 1642 return snprintf(buf, PAGE_SIZE, "%04x\n", 1643 aiptek->features.firmwareCode); 1644 } 1645 1646 static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL); 1647 1648 static struct attribute *aiptek_attributes[] = { 1649 &dev_attr_size.attr, 1650 &dev_attr_pointer_mode.attr, 1651 &dev_attr_coordinate_mode.attr, 1652 &dev_attr_tool_mode.attr, 1653 &dev_attr_xtilt.attr, 1654 &dev_attr_ytilt.attr, 1655 &dev_attr_jitter.attr, 1656 &dev_attr_delay.attr, 1657 &dev_attr_event_count.attr, 1658 &dev_attr_diagnostic.attr, 1659 &dev_attr_odm_code.attr, 1660 &dev_attr_model_code.attr, 1661 &dev_attr_firmware_code.attr, 1662 &dev_attr_stylus_lower.attr, 1663 &dev_attr_stylus_upper.attr, 1664 &dev_attr_mouse_left.attr, 1665 &dev_attr_mouse_middle.attr, 1666 &dev_attr_mouse_right.attr, 1667 &dev_attr_wheel.attr, 1668 &dev_attr_execute.attr, 1669 NULL 1670 }; 1671 1672 static struct attribute_group aiptek_attribute_group = { 1673 .attrs = aiptek_attributes, 1674 }; 1675 1676 /*********************************************************************** 1677 * This routine is called when a tablet has been identified. It basically 1678 * sets up the tablet and the driver's internal structures. 1679 */ 1680 static int 1681 aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id) 1682 { 1683 struct usb_device *usbdev = interface_to_usbdev(intf); 1684 struct usb_endpoint_descriptor *endpoint; 1685 struct aiptek *aiptek; 1686 struct input_dev *inputdev; 1687 int i; 1688 int speeds[] = { 0, 1689 AIPTEK_PROGRAMMABLE_DELAY_50, 1690 AIPTEK_PROGRAMMABLE_DELAY_400, 1691 AIPTEK_PROGRAMMABLE_DELAY_25, 1692 AIPTEK_PROGRAMMABLE_DELAY_100, 1693 AIPTEK_PROGRAMMABLE_DELAY_200, 1694 AIPTEK_PROGRAMMABLE_DELAY_300 1695 }; 1696 int err = -ENOMEM; 1697 1698 /* programmableDelay is where the command-line specified 1699 * delay is kept. We make it the first element of speeds[], 1700 * so therefore, your override speed is tried first, then the 1701 * remainder. Note that the default value of 400ms will be tried 1702 * if you do not specify any command line parameter. 1703 */ 1704 speeds[0] = programmableDelay; 1705 1706 aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL); 1707 inputdev = input_allocate_device(); 1708 if (!aiptek || !inputdev) { 1709 dev_warn(&intf->dev, 1710 "cannot allocate memory or input device\n"); 1711 goto fail1; 1712 } 1713 1714 aiptek->data = usb_buffer_alloc(usbdev, AIPTEK_PACKET_LENGTH, 1715 GFP_ATOMIC, &aiptek->data_dma); 1716 if (!aiptek->data) { 1717 dev_warn(&intf->dev, "cannot allocate usb buffer\n"); 1718 goto fail1; 1719 } 1720 1721 aiptek->urb = usb_alloc_urb(0, GFP_KERNEL); 1722 if (!aiptek->urb) { 1723 dev_warn(&intf->dev, "cannot allocate urb\n"); 1724 goto fail2; 1725 } 1726 1727 aiptek->inputdev = inputdev; 1728 aiptek->usbdev = usbdev; 1729 aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber; 1730 aiptek->inDelay = 0; 1731 aiptek->endDelay = 0; 1732 aiptek->previousJitterable = 0; 1733 aiptek->lastMacro = -1; 1734 1735 /* Set up the curSettings struct. Said struct contains the current 1736 * programmable parameters. The newSetting struct contains changes 1737 * the user makes to the settings via the sysfs interface. Those 1738 * changes are not "committed" to curSettings until the user 1739 * writes to the sysfs/.../execute file. 1740 */ 1741 aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE; 1742 aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE; 1743 aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE; 1744 aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE; 1745 aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE; 1746 aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON; 1747 aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON; 1748 aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON; 1749 aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON; 1750 aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON; 1751 aiptek->curSetting.jitterDelay = jitterDelay; 1752 aiptek->curSetting.programmableDelay = programmableDelay; 1753 1754 /* Both structs should have equivalent settings 1755 */ 1756 aiptek->newSetting = aiptek->curSetting; 1757 1758 /* Determine the usb devices' physical path. 1759 * Asketh not why we always pretend we're using "../input0", 1760 * but I suspect this will have to be refactored one 1761 * day if a single USB device can be a keyboard & a mouse 1762 * & a tablet, and the inputX number actually will tell 1763 * us something... 1764 */ 1765 usb_make_path(usbdev, aiptek->features.usbPath, 1766 sizeof(aiptek->features.usbPath)); 1767 strlcat(aiptek->features.usbPath, "/input0", 1768 sizeof(aiptek->features.usbPath)); 1769 1770 /* Set up client data, pointers to open and close routines 1771 * for the input device. 1772 */ 1773 inputdev->name = "Aiptek"; 1774 inputdev->phys = aiptek->features.usbPath; 1775 usb_to_input_id(usbdev, &inputdev->id); 1776 inputdev->dev.parent = &intf->dev; 1777 1778 input_set_drvdata(inputdev, aiptek); 1779 1780 inputdev->open = aiptek_open; 1781 inputdev->close = aiptek_close; 1782 1783 /* Now program the capacities of the tablet, in terms of being 1784 * an input device. 1785 */ 1786 for (i = 0; i < ARRAY_SIZE(eventTypes); ++i) 1787 __set_bit(eventTypes[i], inputdev->evbit); 1788 1789 for (i = 0; i < ARRAY_SIZE(absEvents); ++i) 1790 __set_bit(absEvents[i], inputdev->absbit); 1791 1792 for (i = 0; i < ARRAY_SIZE(relEvents); ++i) 1793 __set_bit(relEvents[i], inputdev->relbit); 1794 1795 __set_bit(MSC_SERIAL, inputdev->mscbit); 1796 1797 /* Set up key and button codes */ 1798 for (i = 0; i < ARRAY_SIZE(buttonEvents); ++i) 1799 __set_bit(buttonEvents[i], inputdev->keybit); 1800 1801 for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i) 1802 __set_bit(macroKeyEvents[i], inputdev->keybit); 1803 1804 /* 1805 * Program the input device coordinate capacities. We do not yet 1806 * know what maximum X, Y, and Z values are, so we're putting fake 1807 * values in. Later, we'll ask the tablet to put in the correct 1808 * values. 1809 */ 1810 input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0); 1811 input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0); 1812 input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0); 1813 input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0); 1814 input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0); 1815 input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0); 1816 1817 endpoint = &intf->altsetting[0].endpoint[0].desc; 1818 1819 /* Go set up our URB, which is called when the tablet receives 1820 * input. 1821 */ 1822 usb_fill_int_urb(aiptek->urb, 1823 aiptek->usbdev, 1824 usb_rcvintpipe(aiptek->usbdev, 1825 endpoint->bEndpointAddress), 1826 aiptek->data, 8, aiptek_irq, aiptek, 1827 endpoint->bInterval); 1828 1829 aiptek->urb->transfer_dma = aiptek->data_dma; 1830 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1831 1832 /* Program the tablet. This sets the tablet up in the mode 1833 * specified in newSetting, and also queries the tablet's 1834 * physical capacities. 1835 * 1836 * Sanity check: if a tablet doesn't like the slow programmatic 1837 * delay, we often get sizes of 0x0. Let's use that as an indicator 1838 * to try faster delays, up to 25 ms. If that logic fails, well, you'll 1839 * have to explain to us how your tablet thinks it's 0x0, and yet that's 1840 * not an error :-) 1841 */ 1842 1843 for (i = 0; i < ARRAY_SIZE(speeds); ++i) { 1844 aiptek->curSetting.programmableDelay = speeds[i]; 1845 (void)aiptek_program_tablet(aiptek); 1846 if (aiptek->inputdev->absmax[ABS_X] > 0) { 1847 dev_info(&intf->dev, 1848 "Aiptek using %d ms programming speed\n", 1849 aiptek->curSetting.programmableDelay); 1850 break; 1851 } 1852 } 1853 1854 /* Murphy says that some day someone will have a tablet that fails the 1855 above test. That's you, Frederic Rodrigo */ 1856 if (i == ARRAY_SIZE(speeds)) { 1857 dev_info(&intf->dev, 1858 "Aiptek tried all speeds, no sane response\n"); 1859 goto fail2; 1860 } 1861 1862 /* Associate this driver's struct with the usb interface. 1863 */ 1864 usb_set_intfdata(intf, aiptek); 1865 1866 /* Set up the sysfs files 1867 */ 1868 err = sysfs_create_group(&intf->dev.kobj, &aiptek_attribute_group); 1869 if (err) { 1870 dev_warn(&intf->dev, "cannot create sysfs group err: %d\n", 1871 err); 1872 goto fail3; 1873 } 1874 1875 /* Register the tablet as an Input Device 1876 */ 1877 err = input_register_device(aiptek->inputdev); 1878 if (err) { 1879 dev_warn(&intf->dev, 1880 "input_register_device returned err: %d\n", err); 1881 goto fail4; 1882 } 1883 return 0; 1884 1885 fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group); 1886 fail3: usb_free_urb(aiptek->urb); 1887 fail2: usb_buffer_free(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data, 1888 aiptek->data_dma); 1889 fail1: usb_set_intfdata(intf, NULL); 1890 input_free_device(inputdev); 1891 kfree(aiptek); 1892 return err; 1893 } 1894 1895 /*********************************************************************** 1896 * Deal with tablet disconnecting from the system. 1897 */ 1898 static void aiptek_disconnect(struct usb_interface *intf) 1899 { 1900 struct aiptek *aiptek = usb_get_intfdata(intf); 1901 1902 /* Disassociate driver's struct with usb interface 1903 */ 1904 usb_set_intfdata(intf, NULL); 1905 if (aiptek != NULL) { 1906 /* Free & unhook everything from the system. 1907 */ 1908 usb_kill_urb(aiptek->urb); 1909 input_unregister_device(aiptek->inputdev); 1910 sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group); 1911 usb_free_urb(aiptek->urb); 1912 usb_buffer_free(interface_to_usbdev(intf), 1913 AIPTEK_PACKET_LENGTH, 1914 aiptek->data, aiptek->data_dma); 1915 kfree(aiptek); 1916 } 1917 } 1918 1919 static struct usb_driver aiptek_driver = { 1920 .name = "aiptek", 1921 .probe = aiptek_probe, 1922 .disconnect = aiptek_disconnect, 1923 .id_table = aiptek_ids, 1924 }; 1925 1926 static int __init aiptek_init(void) 1927 { 1928 int result = usb_register(&aiptek_driver); 1929 if (result == 0) { 1930 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 1931 DRIVER_DESC "\n"); 1932 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_AUTHOR "\n"); 1933 } 1934 return result; 1935 } 1936 1937 static void __exit aiptek_exit(void) 1938 { 1939 usb_deregister(&aiptek_driver); 1940 } 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"); 1950 1951 module_init(aiptek_init); 1952 module_exit(aiptek_exit); 1953