1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * Native support for the Aiptek HyperPen USB Tablets 4 * (4000U/5000U/6000U/8000U/12000U) 5 * 6 * Copyright (c) 2001 Chris Atenasio <chris@crud.net> 7 * Copyright (c) 2002-2004 Bryan W. Headley <bwheadley@earthlink.net> 8 * 9 * based on wacom.c by 10 * Vojtech Pavlik <vojtech@suse.cz> 11 * Andreas Bach Aaen <abach@stofanet.dk> 12 * Clifford Wolf <clifford@clifford.at> 13 * Sam Mosel <sam.mosel@computer.org> 14 * James E. Blair <corvus@gnu.org> 15 * Daniel Egger <egger@suse.de> 16 * 17 * Many thanks to Oliver Kuechemann for his support. 18 * 19 * ChangeLog: 20 * v0.1 - Initial release 21 * v0.2 - Hack to get around fake event 28's. (Bryan W. Headley) 22 * v0.3 - Make URB dynamic (Bryan W. Headley, Jun-8-2002) 23 * Released to Linux 2.4.19 and 2.5.x 24 * v0.4 - Rewrote substantial portions of the code to deal with 25 * corrected control sequences, timing, dynamic configuration, 26 * support of 6000U - 12000U, procfs, and macro key support 27 * (Jan-1-2003 - Feb-5-2003, Bryan W. Headley) 28 * v1.0 - Added support for diagnostic messages, count of messages 29 * received from URB - Mar-8-2003, Bryan W. Headley 30 * v1.1 - added support for tablet resolution, changed DV and proximity 31 * some corrections - Jun-22-2003, martin schneebacher 32 * - Added support for the sysfs interface, deprecating the 33 * procfs interface for 2.5.x kernel. Also added support for 34 * Wheel command. Bryan W. Headley July-15-2003. 35 * v1.2 - Reworked jitter timer as a kernel thread. 36 * Bryan W. Headley November-28-2003/Jan-10-2004. 37 * v1.3 - Repaired issue of kernel thread going nuts on single-processor 38 * machines, introduced programmableDelay as a command line 39 * parameter. Feb 7 2004, Bryan W. Headley. 40 * v1.4 - Re-wire jitter so it does not require a thread. Courtesy of 41 * Rene van Paassen. Added reporting of physical pointer device 42 * (e.g., stylus, mouse in reports 2, 3, 4, 5. We don't know 43 * for reports 1, 6.) 44 * what physical device reports for reports 1, 6.) Also enabled 45 * MOUSE and LENS tool button modes. Renamed "rubber" to "eraser". 46 * Feb 20, 2004, Bryan W. Headley. 47 * v1.5 - Added previousJitterable, so we don't do jitter delay when the 48 * user is holding a button down for periods of time. 49 * 50 * NOTE: 51 * This kernel driver is augmented by the "Aiptek" XFree86 input 52 * driver for your X server, as well as the Gaiptek GUI Front-end 53 * "Tablet Manager". 54 * These three products are highly interactive with one another, 55 * so therefore it's easier to document them all as one subsystem. 56 * Please visit the project's "home page", located at, 57 * http://aiptektablet.sourceforge.net. 58 */ 59 60#include <linux/jiffies.h> 61#include <linux/kernel.h> 62#include <linux/slab.h> 63#include <linux/module.h> 64#include <linux/usb/input.h> 65#include <linux/uaccess.h> 66#include <asm/unaligned.h> 67 68/* 69 * Aiptek status packet: 70 * 71 * (returned as Report 1 - relative coordinates from mouse and stylus) 72 * 73 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 74 * byte0 0 0 0 0 0 0 0 1 75 * byte1 0 0 0 0 0 BS2 BS Tip 76 * byte2 X7 X6 X5 X4 X3 X2 X1 X0 77 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 78 * 79 * (returned as Report 2 - absolute coordinates from the stylus) 80 * 81 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 82 * byte0 0 0 0 0 0 0 1 0 83 * byte1 X7 X6 X5 X4 X3 X2 X1 X0 84 * byte2 X15 X14 X13 X12 X11 X10 X9 X8 85 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 86 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8 87 * byte5 * * * BS2 BS1 Tip IR DV 88 * byte6 P7 P6 P5 P4 P3 P2 P1 P0 89 * byte7 P15 P14 P13 P12 P11 P10 P9 P8 90 * 91 * (returned as Report 3 - absolute coordinates from the mouse) 92 * 93 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 94 * byte0 0 0 0 0 0 0 1 1 95 * byte1 X7 X6 X5 X4 X3 X2 X1 X0 96 * byte2 X15 X14 X13 X12 X11 X10 X9 X8 97 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 98 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8 99 * byte5 * * * BS2 BS1 Tip IR DV 100 * byte6 P7 P6 P5 P4 P3 P2 P1 P0 101 * byte7 P15 P14 P13 P12 P11 P10 P9 P8 102 * 103 * (returned as Report 4 - macrokeys from the stylus) 104 * 105 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 106 * byte0 0 0 0 0 0 1 0 0 107 * byte1 0 0 0 BS2 BS Tip IR DV 108 * byte2 0 0 0 0 0 0 1 0 109 * byte3 0 0 0 K4 K3 K2 K1 K0 110 * byte4 P7 P6 P5 P4 P3 P2 P1 P0 111 * byte5 P15 P14 P13 P12 P11 P10 P9 P8 112 * 113 * (returned as Report 5 - macrokeys from the mouse) 114 * 115 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 116 * byte0 0 0 0 0 0 1 0 1 117 * byte1 0 0 0 BS2 BS Tip IR DV 118 * byte2 0 0 0 0 0 0 1 0 119 * byte3 0 0 0 K4 K3 K2 K1 K0 120 * byte4 P7 P6 P5 P4 P3 P2 P1 P0 121 * byte5 P15 P14 P13 P12 P11 P10 P9 P8 122 * 123 * IR: In Range = Proximity on 124 * DV = Data Valid 125 * BS = Barrel Switch (as in, macro keys) 126 * BS2 also referred to as Tablet Pick 127 * 128 * Command Summary: 129 * 130 * Use report_type CONTROL (3) 131 * Use report_id 2 132 * 133 * Command/Data Description Return Bytes Return Value 134 * 0x10/0x00 SwitchToMouse 0 135 * 0x10/0x01 SwitchToTablet 0 136 * 0x18/0x04 SetResolution 0 137 * 0x12/0xFF AutoGainOn 0 138 * 0x17/0x00 FilterOn 0 139 * 0x01/0x00 GetXExtension 2 MaxX 140 * 0x01/0x01 GetYExtension 2 MaxY 141 * 0x02/0x00 GetModelCode 2 ModelCode = LOBYTE 142 * 0x03/0x00 GetODMCode 2 ODMCode 143 * 0x08/0x00 GetPressureLevels 2 =512 144 * 0x04/0x00 GetFirmwareVersion 2 Firmware Version 145 * 0x11/0x02 EnableMacroKeys 0 146 * 147 * To initialize the tablet: 148 * 149 * (1) Send Resolution500LPI (Command) 150 * (2) Query for Model code (Option Report) 151 * (3) Query for ODM code (Option Report) 152 * (4) Query for firmware (Option Report) 153 * (5) Query for GetXExtension (Option Report) 154 * (6) Query for GetYExtension (Option Report) 155 * (7) Query for GetPressureLevels (Option Report) 156 * (8) SwitchToTablet for Absolute coordinates, or 157 * SwitchToMouse for Relative coordinates (Command) 158 * (9) EnableMacroKeys (Command) 159 * (10) FilterOn (Command) 160 * (11) AutoGainOn (Command) 161 * 162 * (Step 9 can be omitted, but you'll then have no function keys.) 163 */ 164 165#define USB_VENDOR_ID_AIPTEK 0x08ca 166#define USB_VENDOR_ID_KYE 0x0458 167#define USB_REQ_GET_REPORT 0x01 168#define USB_REQ_SET_REPORT 0x09 169 170 /* PointerMode codes 171 */ 172#define AIPTEK_POINTER_ONLY_MOUSE_MODE 0 173#define AIPTEK_POINTER_ONLY_STYLUS_MODE 1 174#define AIPTEK_POINTER_EITHER_MODE 2 175 176#define AIPTEK_POINTER_ALLOW_MOUSE_MODE(a) \ 177 (a == AIPTEK_POINTER_ONLY_MOUSE_MODE || \ 178 a == AIPTEK_POINTER_EITHER_MODE) 179#define AIPTEK_POINTER_ALLOW_STYLUS_MODE(a) \ 180 (a == AIPTEK_POINTER_ONLY_STYLUS_MODE || \ 181 a == AIPTEK_POINTER_EITHER_MODE) 182 183 /* CoordinateMode code 184 */ 185#define AIPTEK_COORDINATE_RELATIVE_MODE 0 186#define AIPTEK_COORDINATE_ABSOLUTE_MODE 1 187 188 /* XTilt and YTilt values 189 */ 190#define AIPTEK_TILT_MIN (-128) 191#define AIPTEK_TILT_MAX 127 192#define AIPTEK_TILT_DISABLE (-10101) 193 194 /* Wheel values 195 */ 196#define AIPTEK_WHEEL_MIN 0 197#define AIPTEK_WHEEL_MAX 1024 198#define AIPTEK_WHEEL_DISABLE (-10101) 199 200 /* ToolCode values, which BTW are 0x140 .. 0x14f 201 * We have things set up such that if the tool button has changed, 202 * the tools get reset. 203 */ 204 /* toolMode codes 205 */ 206#define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN 207#define AIPTEK_TOOL_BUTTON_PENCIL_MODE BTN_TOOL_PENCIL 208#define AIPTEK_TOOL_BUTTON_BRUSH_MODE BTN_TOOL_BRUSH 209#define AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE BTN_TOOL_AIRBRUSH 210#define AIPTEK_TOOL_BUTTON_ERASER_MODE BTN_TOOL_RUBBER 211#define AIPTEK_TOOL_BUTTON_MOUSE_MODE BTN_TOOL_MOUSE 212#define AIPTEK_TOOL_BUTTON_LENS_MODE BTN_TOOL_LENS 213 214 /* Diagnostic message codes 215 */ 216#define AIPTEK_DIAGNOSTIC_NA 0 217#define AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE 1 218#define AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE 2 219#define AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED 3 220 221 /* Time to wait (in ms) to help mask hand jittering 222 * when pressing the stylus buttons. 223 */ 224#define AIPTEK_JITTER_DELAY_DEFAULT 50 225 226 /* Time to wait (in ms) in-between sending the tablet 227 * a command and beginning the process of reading the return 228 * sequence from the tablet. 229 */ 230#define AIPTEK_PROGRAMMABLE_DELAY_25 25 231#define AIPTEK_PROGRAMMABLE_DELAY_50 50 232#define AIPTEK_PROGRAMMABLE_DELAY_100 100 233#define AIPTEK_PROGRAMMABLE_DELAY_200 200 234#define AIPTEK_PROGRAMMABLE_DELAY_300 300 235#define AIPTEK_PROGRAMMABLE_DELAY_400 400 236#define AIPTEK_PROGRAMMABLE_DELAY_DEFAULT AIPTEK_PROGRAMMABLE_DELAY_400 237 238 /* Mouse button programming 239 */ 240#define AIPTEK_MOUSE_LEFT_BUTTON 0x04 241#define AIPTEK_MOUSE_RIGHT_BUTTON 0x08 242#define AIPTEK_MOUSE_MIDDLE_BUTTON 0x10 243 244 /* Stylus button programming 245 */ 246#define AIPTEK_STYLUS_LOWER_BUTTON 0x08 247#define AIPTEK_STYLUS_UPPER_BUTTON 0x10 248 249 /* Length of incoming packet from the tablet 250 */ 251#define AIPTEK_PACKET_LENGTH 8 252 253 /* We report in EV_MISC both the proximity and 254 * whether the report came from the stylus, tablet mouse 255 * or "unknown" -- Unknown when the tablet is in relative 256 * mode, because we only get report 1's. 257 */ 258#define AIPTEK_REPORT_TOOL_UNKNOWN 0x10 259#define AIPTEK_REPORT_TOOL_STYLUS 0x20 260#define AIPTEK_REPORT_TOOL_MOUSE 0x40 261 262static int programmableDelay = AIPTEK_PROGRAMMABLE_DELAY_DEFAULT; 263static int jitterDelay = AIPTEK_JITTER_DELAY_DEFAULT; 264 265struct aiptek_features { 266 int odmCode; /* Tablet manufacturer code */ 267 int modelCode; /* Tablet model code (not unique) */ 268 int firmwareCode; /* prom/eeprom version */ 269 char usbPath[64 + 1]; /* device's physical usb path */ 270}; 271 272struct aiptek_settings { 273 int pointerMode; /* stylus-, mouse-only or either */ 274 int coordinateMode; /* absolute/relative coords */ 275 int toolMode; /* pen, pencil, brush, etc. tool */ 276 int xTilt; /* synthetic xTilt amount */ 277 int yTilt; /* synthetic yTilt amount */ 278 int wheel; /* synthetic wheel amount */ 279 int stylusButtonUpper; /* stylus upper btn delivers... */ 280 int stylusButtonLower; /* stylus lower btn delivers... */ 281 int mouseButtonLeft; /* mouse left btn delivers... */ 282 int mouseButtonMiddle; /* mouse middle btn delivers... */ 283 int mouseButtonRight; /* mouse right btn delivers... */ 284 int programmableDelay; /* delay for tablet programming */ 285 int jitterDelay; /* delay for hand jittering */ 286}; 287 288struct aiptek { 289 struct input_dev *inputdev; /* input device struct */ 290 struct usb_interface *intf; /* usb interface struct */ 291 struct urb *urb; /* urb for incoming reports */ 292 dma_addr_t data_dma; /* our dma stuffage */ 293 struct aiptek_features features; /* tablet's array of features */ 294 struct aiptek_settings curSetting; /* tablet's current programmable */ 295 struct aiptek_settings newSetting; /* ... and new param settings */ 296 unsigned int ifnum; /* interface number for IO */ 297 int diagnostic; /* tablet diagnostic codes */ 298 unsigned long eventCount; /* event count */ 299 int inDelay; /* jitter: in jitter delay? */ 300 unsigned long endDelay; /* jitter: time when delay ends */ 301 int previousJitterable; /* jitterable prev value */ 302 303 int lastMacro; /* macro key to reset */ 304 int previousToolMode; /* pen, pencil, brush, etc. tool */ 305 unsigned char *data; /* incoming packet data */ 306}; 307 308static const int eventTypes[] = { 309 EV_KEY, EV_ABS, EV_REL, EV_MSC, 310}; 311 312static const int absEvents[] = { 313 ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y, 314 ABS_WHEEL, ABS_MISC, 315}; 316 317static const int relEvents[] = { 318 REL_X, REL_Y, REL_WHEEL, 319}; 320 321static const int buttonEvents[] = { 322 BTN_LEFT, BTN_RIGHT, BTN_MIDDLE, 323 BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_PENCIL, BTN_TOOL_AIRBRUSH, 324 BTN_TOOL_BRUSH, BTN_TOOL_MOUSE, BTN_TOOL_LENS, BTN_TOUCH, 325 BTN_STYLUS, BTN_STYLUS2, 326}; 327 328/* 329 * Permit easy lookup of keyboard events to send, versus 330 * the bitmap which comes from the tablet. This hides the 331 * issue that the F_keys are not sequentially numbered. 332 */ 333static const int macroKeyEvents[] = { 334 KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, 335 KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, 336 KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17, 337 KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23, 338 KEY_F24, KEY_STOP, KEY_AGAIN, KEY_PROPS, KEY_UNDO, 339 KEY_FRONT, KEY_COPY, KEY_OPEN, KEY_PASTE, 0 340}; 341 342/*********************************************************************** 343 * Map values to strings and back. Every map should have the following 344 * as its last element: { NULL, AIPTEK_INVALID_VALUE }. 345 */ 346#define AIPTEK_INVALID_VALUE -1 347 348struct aiptek_map { 349 const char *string; 350 int value; 351}; 352 353static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t count) 354{ 355 const struct aiptek_map *p; 356 357 if (str[count - 1] == '\n') 358 count--; 359 360 for (p = map; p->string; p++) 361 if (!strncmp(str, p->string, count)) 362 return p->value; 363 364 return AIPTEK_INVALID_VALUE; 365} 366 367static const char *map_val_to_str(const struct aiptek_map *map, int val) 368{ 369 const struct aiptek_map *p; 370 371 for (p = map; p->value != AIPTEK_INVALID_VALUE; p++) 372 if (val == p->value) 373 return p->string; 374 375 return "unknown"; 376} 377 378/*********************************************************************** 379 * aiptek_irq can receive one of six potential reports. 380 * The documentation for each is in the body of the function. 381 * 382 * The tablet reports on several attributes per invocation of 383 * aiptek_irq. Because the Linux Input Event system allows the 384 * transmission of ONE attribute per input_report_xxx() call, 385 * collation has to be done on the other end to reconstitute 386 * a complete tablet report. Further, the number of Input Event reports 387 * submitted varies, depending on what USB report type, and circumstance. 388 * To deal with this, EV_MSC is used to indicate an 'end-of-report' 389 * message. This has been an undocumented convention understood by the kernel 390 * tablet driver and clients such as gpm and XFree86's tablet drivers. 391 * 392 * Of the information received from the tablet, the one piece I 393 * cannot transmit is the proximity bit (without resorting to an EV_MSC 394 * convention above.) I therefore have taken over REL_MISC and ABS_MISC 395 * (for relative and absolute reports, respectively) for communicating 396 * Proximity. Why two events? I thought it interesting to know if the 397 * Proximity event occurred while the tablet was in absolute or relative 398 * mode. 399 * Update: REL_MISC proved not to be such a good idea. With REL_MISC you 400 * get an event transmitted each time. ABS_MISC works better, since it 401 * can be set and re-set. Thus, only using ABS_MISC from now on. 402 * 403 * Other tablets use the notion of a certain minimum stylus pressure 404 * to infer proximity. While that could have been done, that is yet 405 * another 'by convention' behavior, the documentation for which 406 * would be spread between two (or more) pieces of software. 407 * 408 * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and 409 * replaced with the input_sync() method (which emits EV_SYN.) 410 */ 411 412static void aiptek_irq(struct urb *urb) 413{ 414 struct aiptek *aiptek = urb->context; 415 unsigned char *data = aiptek->data; 416 struct input_dev *inputdev = aiptek->inputdev; 417 struct usb_interface *intf = aiptek->intf; 418 int jitterable = 0; 419 int retval, macro, x, y, z, left, right, middle, p, dv, tip, bs, pck; 420 421 switch (urb->status) { 422 case 0: 423 /* Success */ 424 break; 425 426 case -ECONNRESET: 427 case -ENOENT: 428 case -ESHUTDOWN: 429 /* This urb is terminated, clean up */ 430 dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n", 431 __func__, urb->status); 432 return; 433 434 default: 435 dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n", 436 __func__, urb->status); 437 goto exit; 438 } 439 440 /* See if we are in a delay loop -- throw out report if true. 441 */ 442 if (aiptek->inDelay == 1 && time_after(aiptek->endDelay, jiffies)) { 443 goto exit; 444 } 445 446 aiptek->inDelay = 0; 447 aiptek->eventCount++; 448 449 /* Report 1 delivers relative coordinates with either a stylus 450 * or the mouse. You do not know, however, which input 451 * tool generated the event. 452 */ 453 if (data[0] == 1) { 454 if (aiptek->curSetting.coordinateMode == 455 AIPTEK_COORDINATE_ABSOLUTE_MODE) { 456 aiptek->diagnostic = 457 AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE; 458 } else { 459 x = (signed char) data[2]; 460 y = (signed char) data[3]; 461 462 /* jitterable keeps track of whether any button has been pressed. 463 * We're also using it to remap the physical mouse button mask 464 * to pseudo-settings. (We don't specifically care about it's 465 * value after moving/transposing mouse button bitmasks, except 466 * that a non-zero value indicates that one or more 467 * mouse button was pressed.) 468 */ 469 jitterable = data[1] & 0x07; 470 471 left = (data[1] & aiptek->curSetting.mouseButtonLeft >> 2) != 0 ? 1 : 0; 472 right = (data[1] & aiptek->curSetting.mouseButtonRight >> 2) != 0 ? 1 : 0; 473 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle >> 2) != 0 ? 1 : 0; 474 475 input_report_key(inputdev, BTN_LEFT, left); 476 input_report_key(inputdev, BTN_MIDDLE, middle); 477 input_report_key(inputdev, BTN_RIGHT, right); 478 479 input_report_abs(inputdev, ABS_MISC, 480 1 | AIPTEK_REPORT_TOOL_UNKNOWN); 481 input_report_rel(inputdev, REL_X, x); 482 input_report_rel(inputdev, REL_Y, y); 483 484 /* Wheel support is in the form of a single-event 485 * firing. 486 */ 487 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) { 488 input_report_rel(inputdev, REL_WHEEL, 489 aiptek->curSetting.wheel); 490 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE; 491 } 492 if (aiptek->lastMacro != -1) { 493 input_report_key(inputdev, 494 macroKeyEvents[aiptek->lastMacro], 0); 495 aiptek->lastMacro = -1; 496 } 497 input_sync(inputdev); 498 } 499 } 500 /* Report 2 is delivered only by the stylus, and delivers 501 * absolute coordinates. 502 */ 503 else if (data[0] == 2) { 504 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) { 505 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE; 506 } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE 507 (aiptek->curSetting.pointerMode)) { 508 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED; 509 } else { 510 x = get_unaligned_le16(data + 1); 511 y = get_unaligned_le16(data + 3); 512 z = get_unaligned_le16(data + 6); 513 514 dv = (data[5] & 0x01) != 0 ? 1 : 0; 515 p = (data[5] & 0x02) != 0 ? 1 : 0; 516 tip = (data[5] & 0x04) != 0 ? 1 : 0; 517 518 /* Use jitterable to re-arrange button masks 519 */ 520 jitterable = data[5] & 0x18; 521 522 bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0; 523 pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0; 524 525 /* dv indicates 'data valid' (e.g., the tablet is in sync 526 * and has delivered a "correct" report) We will ignore 527 * all 'bad' reports... 528 */ 529 if (dv != 0) { 530 /* If the selected tool changed, reset the old 531 * tool key, and set the new one. 532 */ 533 if (aiptek->previousToolMode != 534 aiptek->curSetting.toolMode) { 535 input_report_key(inputdev, 536 aiptek->previousToolMode, 0); 537 input_report_key(inputdev, 538 aiptek->curSetting.toolMode, 539 1); 540 aiptek->previousToolMode = 541 aiptek->curSetting.toolMode; 542 } 543 544 if (p != 0) { 545 input_report_abs(inputdev, ABS_X, x); 546 input_report_abs(inputdev, ABS_Y, y); 547 input_report_abs(inputdev, ABS_PRESSURE, z); 548 549 input_report_key(inputdev, BTN_TOUCH, tip); 550 input_report_key(inputdev, BTN_STYLUS, bs); 551 input_report_key(inputdev, BTN_STYLUS2, pck); 552 553 if (aiptek->curSetting.xTilt != 554 AIPTEK_TILT_DISABLE) { 555 input_report_abs(inputdev, 556 ABS_TILT_X, 557 aiptek->curSetting.xTilt); 558 } 559 if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) { 560 input_report_abs(inputdev, 561 ABS_TILT_Y, 562 aiptek->curSetting.yTilt); 563 } 564 565 /* Wheel support is in the form of a single-event 566 * firing. 567 */ 568 if (aiptek->curSetting.wheel != 569 AIPTEK_WHEEL_DISABLE) { 570 input_report_abs(inputdev, 571 ABS_WHEEL, 572 aiptek->curSetting.wheel); 573 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE; 574 } 575 } 576 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS); 577 if (aiptek->lastMacro != -1) { 578 input_report_key(inputdev, 579 macroKeyEvents[aiptek->lastMacro], 0); 580 aiptek->lastMacro = -1; 581 } 582 input_sync(inputdev); 583 } 584 } 585 } 586 /* Report 3's come from the mouse in absolute mode. 587 */ 588 else if (data[0] == 3) { 589 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) { 590 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE; 591 } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE 592 (aiptek->curSetting.pointerMode)) { 593 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED; 594 } else { 595 x = get_unaligned_le16(data + 1); 596 y = get_unaligned_le16(data + 3); 597 598 jitterable = data[5] & 0x1c; 599 600 dv = (data[5] & 0x01) != 0 ? 1 : 0; 601 p = (data[5] & 0x02) != 0 ? 1 : 0; 602 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0; 603 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0; 604 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0; 605 606 if (dv != 0) { 607 /* If the selected tool changed, reset the old 608 * tool key, and set the new one. 609 */ 610 if (aiptek->previousToolMode != 611 aiptek->curSetting.toolMode) { 612 input_report_key(inputdev, 613 aiptek->previousToolMode, 0); 614 input_report_key(inputdev, 615 aiptek->curSetting.toolMode, 616 1); 617 aiptek->previousToolMode = 618 aiptek->curSetting.toolMode; 619 } 620 621 if (p != 0) { 622 input_report_abs(inputdev, ABS_X, x); 623 input_report_abs(inputdev, ABS_Y, y); 624 625 input_report_key(inputdev, BTN_LEFT, left); 626 input_report_key(inputdev, BTN_MIDDLE, middle); 627 input_report_key(inputdev, BTN_RIGHT, right); 628 629 /* Wheel support is in the form of a single-event 630 * firing. 631 */ 632 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) { 633 input_report_abs(inputdev, 634 ABS_WHEEL, 635 aiptek->curSetting.wheel); 636 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE; 637 } 638 } 639 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_MOUSE); 640 if (aiptek->lastMacro != -1) { 641 input_report_key(inputdev, 642 macroKeyEvents[aiptek->lastMacro], 0); 643 aiptek->lastMacro = -1; 644 } 645 input_sync(inputdev); 646 } 647 } 648 } 649 /* Report 4s come from the macro keys when pressed by stylus 650 */ 651 else if (data[0] == 4) { 652 jitterable = data[1] & 0x18; 653 654 dv = (data[1] & 0x01) != 0 ? 1 : 0; 655 p = (data[1] & 0x02) != 0 ? 1 : 0; 656 tip = (data[1] & 0x04) != 0 ? 1 : 0; 657 bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0; 658 pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0; 659 660 macro = dv && p && tip && !(data[3] & 1) ? (data[3] >> 1) : -1; 661 z = get_unaligned_le16(data + 4); 662 663 if (dv) { 664 /* If the selected tool changed, reset the old 665 * tool key, and set the new one. 666 */ 667 if (aiptek->previousToolMode != 668 aiptek->curSetting.toolMode) { 669 input_report_key(inputdev, 670 aiptek->previousToolMode, 0); 671 input_report_key(inputdev, 672 aiptek->curSetting.toolMode, 673 1); 674 aiptek->previousToolMode = 675 aiptek->curSetting.toolMode; 676 } 677 } 678 679 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) { 680 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0); 681 aiptek->lastMacro = -1; 682 } 683 684 if (macro != -1 && macro != aiptek->lastMacro) { 685 input_report_key(inputdev, macroKeyEvents[macro], 1); 686 aiptek->lastMacro = macro; 687 } 688 input_report_abs(inputdev, ABS_MISC, 689 p | AIPTEK_REPORT_TOOL_STYLUS); 690 input_sync(inputdev); 691 } 692 /* Report 5s come from the macro keys when pressed by mouse 693 */ 694 else if (data[0] == 5) { 695 jitterable = data[1] & 0x1c; 696 697 dv = (data[1] & 0x01) != 0 ? 1 : 0; 698 p = (data[1] & 0x02) != 0 ? 1 : 0; 699 left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0; 700 right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0; 701 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0; 702 macro = dv && p && left && !(data[3] & 1) ? (data[3] >> 1) : 0; 703 704 if (dv) { 705 /* If the selected tool changed, reset the old 706 * tool key, and set the new one. 707 */ 708 if (aiptek->previousToolMode != 709 aiptek->curSetting.toolMode) { 710 input_report_key(inputdev, 711 aiptek->previousToolMode, 0); 712 input_report_key(inputdev, 713 aiptek->curSetting.toolMode, 1); 714 aiptek->previousToolMode = aiptek->curSetting.toolMode; 715 } 716 } 717 718 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) { 719 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0); 720 aiptek->lastMacro = -1; 721 } 722 723 if (macro != -1 && macro != aiptek->lastMacro) { 724 input_report_key(inputdev, macroKeyEvents[macro], 1); 725 aiptek->lastMacro = macro; 726 } 727 728 input_report_abs(inputdev, ABS_MISC, 729 p | AIPTEK_REPORT_TOOL_MOUSE); 730 input_sync(inputdev); 731 } 732 /* We have no idea which tool can generate a report 6. Theoretically, 733 * neither need to, having been given reports 4 & 5 for such use. 734 * However, report 6 is the 'official-looking' report for macroKeys; 735 * reports 4 & 5 supposively are used to support unnamed, unknown 736 * hat switches (which just so happen to be the macroKeys.) 737 */ 738 else if (data[0] == 6) { 739 macro = get_unaligned_le16(data + 1); 740 if (macro > 0) { 741 input_report_key(inputdev, macroKeyEvents[macro - 1], 742 0); 743 } 744 if (macro < 25) { 745 input_report_key(inputdev, macroKeyEvents[macro + 1], 746 0); 747 } 748 749 /* If the selected tool changed, reset the old 750 tool key, and set the new one. 751 */ 752 if (aiptek->previousToolMode != 753 aiptek->curSetting.toolMode) { 754 input_report_key(inputdev, 755 aiptek->previousToolMode, 0); 756 input_report_key(inputdev, 757 aiptek->curSetting.toolMode, 758 1); 759 aiptek->previousToolMode = 760 aiptek->curSetting.toolMode; 761 } 762 763 input_report_key(inputdev, macroKeyEvents[macro], 1); 764 input_report_abs(inputdev, ABS_MISC, 765 1 | AIPTEK_REPORT_TOOL_UNKNOWN); 766 input_sync(inputdev); 767 } else { 768 dev_dbg(&intf->dev, "Unknown report %d\n", data[0]); 769 } 770 771 /* Jitter may occur when the user presses a button on the stlyus 772 * or the mouse. What we do to prevent that is wait 'x' milliseconds 773 * following a 'jitterable' event, which should give the hand some time 774 * stabilize itself. 775 * 776 * We just introduced aiptek->previousJitterable to carry forth the 777 * notion that jitter occurs when the button state changes from on to off: 778 * a person drawing, holding a button down is not subject to jittering. 779 * With that in mind, changing from upper button depressed to lower button 780 * WILL transition through a jitter delay. 781 */ 782 783 if (aiptek->previousJitterable != jitterable && 784 aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) { 785 aiptek->endDelay = jiffies + 786 ((aiptek->curSetting.jitterDelay * HZ) / 1000); 787 aiptek->inDelay = 1; 788 } 789 aiptek->previousJitterable = jitterable; 790 791exit: 792 retval = usb_submit_urb(urb, GFP_ATOMIC); 793 if (retval != 0) { 794 dev_err(&intf->dev, 795 "%s - usb_submit_urb failed with result %d\n", 796 __func__, retval); 797 } 798} 799 800/*********************************************************************** 801 * These are the USB id's known so far. We do not identify them to 802 * specific Aiptek model numbers, because there has been overlaps, 803 * use, and reuse of id's in existing models. Certain models have 804 * been known to use more than one ID, indicative perhaps of 805 * manufacturing revisions. In any event, we consider these 806 * IDs to not be model-specific nor unique. 807 */ 808static const struct usb_device_id aiptek_ids[] = { 809 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)}, 810 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)}, 811 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)}, 812 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)}, 813 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)}, 814 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)}, 815 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)}, 816 {USB_DEVICE(USB_VENDOR_ID_KYE, 0x5003)}, 817 {} 818}; 819 820MODULE_DEVICE_TABLE(usb, aiptek_ids); 821 822/*********************************************************************** 823 * Open an instance of the tablet driver. 824 */ 825static int aiptek_open(struct input_dev *inputdev) 826{ 827 struct aiptek *aiptek = input_get_drvdata(inputdev); 828 829 aiptek->urb->dev = interface_to_usbdev(aiptek->intf); 830 if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0) 831 return -EIO; 832 833 return 0; 834} 835 836/*********************************************************************** 837 * Close an instance of the tablet driver. 838 */ 839static void aiptek_close(struct input_dev *inputdev) 840{ 841 struct aiptek *aiptek = input_get_drvdata(inputdev); 842 843 usb_kill_urb(aiptek->urb); 844} 845 846/*********************************************************************** 847 * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x, 848 * where they were known as usb_set_report and usb_get_report. 849 */ 850static int 851aiptek_set_report(struct aiptek *aiptek, 852 unsigned char report_type, 853 unsigned char report_id, void *buffer, int size) 854{ 855 struct usb_device *udev = interface_to_usbdev(aiptek->intf); 856 857 return usb_control_msg(udev, 858 usb_sndctrlpipe(udev, 0), 859 USB_REQ_SET_REPORT, 860 USB_TYPE_CLASS | USB_RECIP_INTERFACE | 861 USB_DIR_OUT, (report_type << 8) + report_id, 862 aiptek->ifnum, buffer, size, 5000); 863} 864 865static int 866aiptek_get_report(struct aiptek *aiptek, 867 unsigned char report_type, 868 unsigned char report_id, void *buffer, int size) 869{ 870 struct usb_device *udev = interface_to_usbdev(aiptek->intf); 871 872 return usb_control_msg(udev, 873 usb_rcvctrlpipe(udev, 0), 874 USB_REQ_GET_REPORT, 875 USB_TYPE_CLASS | USB_RECIP_INTERFACE | 876 USB_DIR_IN, (report_type << 8) + report_id, 877 aiptek->ifnum, buffer, size, 5000); 878} 879 880/*********************************************************************** 881 * Send a command to the tablet. 882 */ 883static int 884aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data) 885{ 886 const int sizeof_buf = 3 * sizeof(u8); 887 int ret; 888 u8 *buf; 889 890 buf = kmalloc(sizeof_buf, GFP_KERNEL); 891 if (!buf) 892 return -ENOMEM; 893 894 buf[0] = 2; 895 buf[1] = command; 896 buf[2] = data; 897 898 if ((ret = 899 aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) { 900 dev_dbg(&aiptek->intf->dev, 901 "aiptek_program: failed, tried to send: 0x%02x 0x%02x\n", 902 command, data); 903 } 904 kfree(buf); 905 return ret < 0 ? ret : 0; 906} 907 908/*********************************************************************** 909 * Retrieve information from the tablet. Querying info is defined as first 910 * sending the {command,data} sequence as a command, followed by a wait 911 * (aka, "programmaticDelay") and then a "read" request. 912 */ 913static int 914aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data) 915{ 916 const int sizeof_buf = 3 * sizeof(u8); 917 int ret; 918 u8 *buf; 919 920 buf = kmalloc(sizeof_buf, GFP_KERNEL); 921 if (!buf) 922 return -ENOMEM; 923 924 buf[0] = 2; 925 buf[1] = command; 926 buf[2] = data; 927 928 if (aiptek_command(aiptek, command, data) != 0) { 929 kfree(buf); 930 return -EIO; 931 } 932 msleep(aiptek->curSetting.programmableDelay); 933 934 if (aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf) != sizeof_buf) { 935 dev_dbg(&aiptek->intf->dev, 936 "aiptek_query failed: returned 0x%02x 0x%02x 0x%02x\n", 937 buf[0], buf[1], buf[2]); 938 ret = -EIO; 939 } else { 940 ret = get_unaligned_le16(buf + 1); 941 } 942 kfree(buf); 943 return ret; 944} 945 946/*********************************************************************** 947 * Program the tablet into either absolute or relative mode. 948 * We also get information about the tablet's size. 949 */ 950static int aiptek_program_tablet(struct aiptek *aiptek) 951{ 952 int ret; 953 /* Execute Resolution500LPI */ 954 if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0) 955 return ret; 956 957 /* Query getModelCode */ 958 if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0) 959 return ret; 960 aiptek->features.modelCode = ret & 0xff; 961 962 /* Query getODMCode */ 963 if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0) 964 return ret; 965 aiptek->features.odmCode = ret; 966 967 /* Query getFirmwareCode */ 968 if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0) 969 return ret; 970 aiptek->features.firmwareCode = ret; 971 972 /* Query getXextension */ 973 if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0) 974 return ret; 975 input_set_abs_params(aiptek->inputdev, ABS_X, 0, ret - 1, 0, 0); 976 977 /* Query getYextension */ 978 if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0) 979 return ret; 980 input_set_abs_params(aiptek->inputdev, ABS_Y, 0, ret - 1, 0, 0); 981 982 /* Query getPressureLevels */ 983 if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0) 984 return ret; 985 input_set_abs_params(aiptek->inputdev, ABS_PRESSURE, 0, ret - 1, 0, 0); 986 987 /* Depending on whether we are in absolute or relative mode, we will 988 * do a switchToTablet(absolute) or switchToMouse(relative) command. 989 */ 990 if (aiptek->curSetting.coordinateMode == 991 AIPTEK_COORDINATE_ABSOLUTE_MODE) { 992 /* Execute switchToTablet */ 993 if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) { 994 return ret; 995 } 996 } else { 997 /* Execute switchToMouse */ 998 if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) { 999 return ret; 1000 } 1001 } 1002 1003 /* Enable the macro keys */ 1004 if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0) 1005 return ret; 1006#if 0 1007 /* Execute FilterOn */ 1008 if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0) 1009 return ret; 1010#endif 1011 1012 /* Execute AutoGainOn */ 1013 if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0) 1014 return ret; 1015 1016 /* Reset the eventCount, so we track events from last (re)programming 1017 */ 1018 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA; 1019 aiptek->eventCount = 0; 1020 1021 return 0; 1022} 1023 1024/*********************************************************************** 1025 * Sysfs functions. Sysfs prefers that individually-tunable parameters 1026 * exist in their separate pseudo-files. Summary data that is immutable 1027 * may exist in a singular file so long as you don't define a writeable 1028 * interface. 1029 */ 1030 1031/*********************************************************************** 1032 * support the 'size' file -- display support 1033 */ 1034static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf) 1035{ 1036 struct aiptek *aiptek = dev_get_drvdata(dev); 1037 1038 return sysfs_emit(buf, "%dx%d\n", 1039 input_abs_get_max(aiptek->inputdev, ABS_X) + 1, 1040 input_abs_get_max(aiptek->inputdev, ABS_Y) + 1); 1041} 1042 1043/* These structs define the sysfs files, param #1 is the name of the 1044 * file, param 2 is the file permissions, param 3 & 4 are to the 1045 * output generator and input parser routines. Absence of a routine is 1046 * permitted -- it only means can't either 'cat' the file, or send data 1047 * to it. 1048 */ 1049static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL); 1050 1051/*********************************************************************** 1052 * support routines for the 'pointer_mode' file. Note that this file 1053 * both displays current setting and allows reprogramming. 1054 */ 1055static struct aiptek_map pointer_mode_map[] = { 1056 { "stylus", AIPTEK_POINTER_ONLY_STYLUS_MODE }, 1057 { "mouse", AIPTEK_POINTER_ONLY_MOUSE_MODE }, 1058 { "either", AIPTEK_POINTER_EITHER_MODE }, 1059 { NULL, AIPTEK_INVALID_VALUE } 1060}; 1061 1062static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf) 1063{ 1064 struct aiptek *aiptek = dev_get_drvdata(dev); 1065 1066 return sysfs_emit(buf, "%s\n", map_val_to_str(pointer_mode_map, 1067 aiptek->curSetting.pointerMode)); 1068} 1069 1070static ssize_t 1071store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1072{ 1073 struct aiptek *aiptek = dev_get_drvdata(dev); 1074 int new_mode = map_str_to_val(pointer_mode_map, buf, count); 1075 1076 if (new_mode == AIPTEK_INVALID_VALUE) 1077 return -EINVAL; 1078 1079 aiptek->newSetting.pointerMode = new_mode; 1080 return count; 1081} 1082 1083static DEVICE_ATTR(pointer_mode, 1084 S_IRUGO | S_IWUSR, 1085 show_tabletPointerMode, store_tabletPointerMode); 1086 1087/*********************************************************************** 1088 * support routines for the 'coordinate_mode' file. Note that this file 1089 * both displays current setting and allows reprogramming. 1090 */ 1091 1092static struct aiptek_map coordinate_mode_map[] = { 1093 { "absolute", AIPTEK_COORDINATE_ABSOLUTE_MODE }, 1094 { "relative", AIPTEK_COORDINATE_RELATIVE_MODE }, 1095 { NULL, AIPTEK_INVALID_VALUE } 1096}; 1097 1098static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf) 1099{ 1100 struct aiptek *aiptek = dev_get_drvdata(dev); 1101 1102 return sysfs_emit(buf, "%s\n", map_val_to_str(coordinate_mode_map, 1103 aiptek->curSetting.coordinateMode)); 1104} 1105 1106static ssize_t 1107store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1108{ 1109 struct aiptek *aiptek = dev_get_drvdata(dev); 1110 int new_mode = map_str_to_val(coordinate_mode_map, buf, count); 1111 1112 if (new_mode == AIPTEK_INVALID_VALUE) 1113 return -EINVAL; 1114 1115 aiptek->newSetting.coordinateMode = new_mode; 1116 return count; 1117} 1118 1119static DEVICE_ATTR(coordinate_mode, 1120 S_IRUGO | S_IWUSR, 1121 show_tabletCoordinateMode, store_tabletCoordinateMode); 1122 1123/*********************************************************************** 1124 * support routines for the 'tool_mode' file. Note that this file 1125 * both displays current setting and allows reprogramming. 1126 */ 1127 1128static struct aiptek_map tool_mode_map[] = { 1129 { "mouse", AIPTEK_TOOL_BUTTON_MOUSE_MODE }, 1130 { "eraser", AIPTEK_TOOL_BUTTON_ERASER_MODE }, 1131 { "pencil", AIPTEK_TOOL_BUTTON_PENCIL_MODE }, 1132 { "pen", AIPTEK_TOOL_BUTTON_PEN_MODE }, 1133 { "brush", AIPTEK_TOOL_BUTTON_BRUSH_MODE }, 1134 { "airbrush", AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE }, 1135 { "lens", AIPTEK_TOOL_BUTTON_LENS_MODE }, 1136 { NULL, AIPTEK_INVALID_VALUE } 1137}; 1138 1139static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf) 1140{ 1141 struct aiptek *aiptek = dev_get_drvdata(dev); 1142 1143 return sysfs_emit(buf, "%s\n", map_val_to_str(tool_mode_map, 1144 aiptek->curSetting.toolMode)); 1145} 1146 1147static ssize_t 1148store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1149{ 1150 struct aiptek *aiptek = dev_get_drvdata(dev); 1151 int new_mode = map_str_to_val(tool_mode_map, buf, count); 1152 1153 if (new_mode == AIPTEK_INVALID_VALUE) 1154 return -EINVAL; 1155 1156 aiptek->newSetting.toolMode = new_mode; 1157 return count; 1158} 1159 1160static DEVICE_ATTR(tool_mode, 1161 S_IRUGO | S_IWUSR, 1162 show_tabletToolMode, store_tabletToolMode); 1163 1164/*********************************************************************** 1165 * support routines for the 'xtilt' file. Note that this file 1166 * both displays current setting and allows reprogramming. 1167 */ 1168static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf) 1169{ 1170 struct aiptek *aiptek = dev_get_drvdata(dev); 1171 1172 if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) { 1173 return sysfs_emit(buf, "disable\n"); 1174 } else { 1175 return sysfs_emit(buf, "%d\n", aiptek->curSetting.xTilt); 1176 } 1177} 1178 1179static ssize_t 1180store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1181{ 1182 struct aiptek *aiptek = dev_get_drvdata(dev); 1183 int x; 1184 1185 if (kstrtoint(buf, 10, &x)) { 1186 size_t len = buf[count - 1] == '\n' ? count - 1 : count; 1187 1188 if (strncmp(buf, "disable", len)) 1189 return -EINVAL; 1190 1191 aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE; 1192 } else { 1193 if (x < AIPTEK_TILT_MIN || x > AIPTEK_TILT_MAX) 1194 return -EINVAL; 1195 1196 aiptek->newSetting.xTilt = x; 1197 } 1198 1199 return count; 1200} 1201 1202static DEVICE_ATTR(xtilt, 1203 S_IRUGO | S_IWUSR, show_tabletXtilt, store_tabletXtilt); 1204 1205/*********************************************************************** 1206 * support routines for the 'ytilt' file. Note that this file 1207 * both displays current setting and allows reprogramming. 1208 */ 1209static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf) 1210{ 1211 struct aiptek *aiptek = dev_get_drvdata(dev); 1212 1213 if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) { 1214 return sysfs_emit(buf, "disable\n"); 1215 } else { 1216 return sysfs_emit(buf, "%d\n", aiptek->curSetting.yTilt); 1217 } 1218} 1219 1220static ssize_t 1221store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1222{ 1223 struct aiptek *aiptek = dev_get_drvdata(dev); 1224 int y; 1225 1226 if (kstrtoint(buf, 10, &y)) { 1227 size_t len = buf[count - 1] == '\n' ? count - 1 : count; 1228 1229 if (strncmp(buf, "disable", len)) 1230 return -EINVAL; 1231 1232 aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE; 1233 } else { 1234 if (y < AIPTEK_TILT_MIN || y > AIPTEK_TILT_MAX) 1235 return -EINVAL; 1236 1237 aiptek->newSetting.yTilt = y; 1238 } 1239 1240 return count; 1241} 1242 1243static DEVICE_ATTR(ytilt, 1244 S_IRUGO | S_IWUSR, show_tabletYtilt, store_tabletYtilt); 1245 1246/*********************************************************************** 1247 * support routines for the 'jitter' file. Note that this file 1248 * both displays current setting and allows reprogramming. 1249 */ 1250static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf) 1251{ 1252 struct aiptek *aiptek = dev_get_drvdata(dev); 1253 1254 return sysfs_emit(buf, "%d\n", aiptek->curSetting.jitterDelay); 1255} 1256 1257static ssize_t 1258store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1259{ 1260 struct aiptek *aiptek = dev_get_drvdata(dev); 1261 int err, j; 1262 1263 err = kstrtoint(buf, 10, &j); 1264 if (err) 1265 return err; 1266 1267 aiptek->newSetting.jitterDelay = j; 1268 return count; 1269} 1270 1271static DEVICE_ATTR(jitter, 1272 S_IRUGO | S_IWUSR, 1273 show_tabletJitterDelay, store_tabletJitterDelay); 1274 1275/*********************************************************************** 1276 * support routines for the 'delay' file. Note that this file 1277 * both displays current setting and allows reprogramming. 1278 */ 1279static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf) 1280{ 1281 struct aiptek *aiptek = dev_get_drvdata(dev); 1282 1283 return sysfs_emit(buf, "%d\n", aiptek->curSetting.programmableDelay); 1284} 1285 1286static ssize_t 1287store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1288{ 1289 struct aiptek *aiptek = dev_get_drvdata(dev); 1290 int err, d; 1291 1292 err = kstrtoint(buf, 10, &d); 1293 if (err) 1294 return err; 1295 1296 aiptek->newSetting.programmableDelay = d; 1297 return count; 1298} 1299 1300static DEVICE_ATTR(delay, 1301 S_IRUGO | S_IWUSR, 1302 show_tabletProgrammableDelay, store_tabletProgrammableDelay); 1303 1304/*********************************************************************** 1305 * support routines for the 'event_count' file. Note that this file 1306 * only displays current setting. 1307 */ 1308static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf) 1309{ 1310 struct aiptek *aiptek = dev_get_drvdata(dev); 1311 1312 return sysfs_emit(buf, "%ld\n", aiptek->eventCount); 1313} 1314 1315static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL); 1316 1317/*********************************************************************** 1318 * support routines for the 'diagnostic' file. Note that this file 1319 * only displays current setting. 1320 */ 1321static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf) 1322{ 1323 struct aiptek *aiptek = dev_get_drvdata(dev); 1324 char *retMsg; 1325 1326 switch (aiptek->diagnostic) { 1327 case AIPTEK_DIAGNOSTIC_NA: 1328 retMsg = "no errors\n"; 1329 break; 1330 1331 case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE: 1332 retMsg = "Error: receiving relative reports\n"; 1333 break; 1334 1335 case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE: 1336 retMsg = "Error: receiving absolute reports\n"; 1337 break; 1338 1339 case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED: 1340 if (aiptek->curSetting.pointerMode == 1341 AIPTEK_POINTER_ONLY_MOUSE_MODE) { 1342 retMsg = "Error: receiving stylus reports\n"; 1343 } else { 1344 retMsg = "Error: receiving mouse reports\n"; 1345 } 1346 break; 1347 1348 default: 1349 return 0; 1350 } 1351 return sysfs_emit(buf, retMsg); 1352} 1353 1354static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL); 1355 1356/*********************************************************************** 1357 * support routines for the 'stylus_upper' file. Note that this file 1358 * both displays current setting and allows for setting changing. 1359 */ 1360 1361static struct aiptek_map stylus_button_map[] = { 1362 { "upper", AIPTEK_STYLUS_UPPER_BUTTON }, 1363 { "lower", AIPTEK_STYLUS_LOWER_BUTTON }, 1364 { NULL, AIPTEK_INVALID_VALUE } 1365}; 1366 1367static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf) 1368{ 1369 struct aiptek *aiptek = dev_get_drvdata(dev); 1370 1371 return sysfs_emit(buf, "%s\n", map_val_to_str(stylus_button_map, 1372 aiptek->curSetting.stylusButtonUpper)); 1373} 1374 1375static ssize_t 1376store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1377{ 1378 struct aiptek *aiptek = dev_get_drvdata(dev); 1379 int new_button = map_str_to_val(stylus_button_map, buf, count); 1380 1381 if (new_button == AIPTEK_INVALID_VALUE) 1382 return -EINVAL; 1383 1384 aiptek->newSetting.stylusButtonUpper = new_button; 1385 return count; 1386} 1387 1388static DEVICE_ATTR(stylus_upper, 1389 S_IRUGO | S_IWUSR, 1390 show_tabletStylusUpper, store_tabletStylusUpper); 1391 1392/*********************************************************************** 1393 * support routines for the 'stylus_lower' file. Note that this file 1394 * both displays current setting and allows for setting changing. 1395 */ 1396 1397static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf) 1398{ 1399 struct aiptek *aiptek = dev_get_drvdata(dev); 1400 1401 return sysfs_emit(buf, "%s\n", map_val_to_str(stylus_button_map, 1402 aiptek->curSetting.stylusButtonLower)); 1403} 1404 1405static ssize_t 1406store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1407{ 1408 struct aiptek *aiptek = dev_get_drvdata(dev); 1409 int new_button = map_str_to_val(stylus_button_map, buf, count); 1410 1411 if (new_button == AIPTEK_INVALID_VALUE) 1412 return -EINVAL; 1413 1414 aiptek->newSetting.stylusButtonLower = new_button; 1415 return count; 1416} 1417 1418static DEVICE_ATTR(stylus_lower, 1419 S_IRUGO | S_IWUSR, 1420 show_tabletStylusLower, store_tabletStylusLower); 1421 1422/*********************************************************************** 1423 * support routines for the 'mouse_left' file. Note that this file 1424 * both displays current setting and allows for setting changing. 1425 */ 1426 1427static struct aiptek_map mouse_button_map[] = { 1428 { "left", AIPTEK_MOUSE_LEFT_BUTTON }, 1429 { "middle", AIPTEK_MOUSE_MIDDLE_BUTTON }, 1430 { "right", AIPTEK_MOUSE_RIGHT_BUTTON }, 1431 { NULL, AIPTEK_INVALID_VALUE } 1432}; 1433 1434static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf) 1435{ 1436 struct aiptek *aiptek = dev_get_drvdata(dev); 1437 1438 return sysfs_emit(buf, "%s\n", map_val_to_str(mouse_button_map, 1439 aiptek->curSetting.mouseButtonLeft)); 1440} 1441 1442static ssize_t 1443store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1444{ 1445 struct aiptek *aiptek = dev_get_drvdata(dev); 1446 int new_button = map_str_to_val(mouse_button_map, buf, count); 1447 1448 if (new_button == AIPTEK_INVALID_VALUE) 1449 return -EINVAL; 1450 1451 aiptek->newSetting.mouseButtonLeft = new_button; 1452 return count; 1453} 1454 1455static DEVICE_ATTR(mouse_left, 1456 S_IRUGO | S_IWUSR, 1457 show_tabletMouseLeft, store_tabletMouseLeft); 1458 1459/*********************************************************************** 1460 * support routines for the 'mouse_middle' file. Note that this file 1461 * both displays current setting and allows for setting changing. 1462 */ 1463static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf) 1464{ 1465 struct aiptek *aiptek = dev_get_drvdata(dev); 1466 1467 return sysfs_emit(buf, "%s\n", map_val_to_str(mouse_button_map, 1468 aiptek->curSetting.mouseButtonMiddle)); 1469} 1470 1471static ssize_t 1472store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1473{ 1474 struct aiptek *aiptek = dev_get_drvdata(dev); 1475 int new_button = map_str_to_val(mouse_button_map, buf, count); 1476 1477 if (new_button == AIPTEK_INVALID_VALUE) 1478 return -EINVAL; 1479 1480 aiptek->newSetting.mouseButtonMiddle = new_button; 1481 return count; 1482} 1483 1484static DEVICE_ATTR(mouse_middle, 1485 S_IRUGO | S_IWUSR, 1486 show_tabletMouseMiddle, store_tabletMouseMiddle); 1487 1488/*********************************************************************** 1489 * support routines for the 'mouse_right' file. Note that this file 1490 * both displays current setting and allows for setting changing. 1491 */ 1492static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf) 1493{ 1494 struct aiptek *aiptek = dev_get_drvdata(dev); 1495 1496 return sysfs_emit(buf, "%s\n", map_val_to_str(mouse_button_map, 1497 aiptek->curSetting.mouseButtonRight)); 1498} 1499 1500static ssize_t 1501store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1502{ 1503 struct aiptek *aiptek = dev_get_drvdata(dev); 1504 int new_button = map_str_to_val(mouse_button_map, buf, count); 1505 1506 if (new_button == AIPTEK_INVALID_VALUE) 1507 return -EINVAL; 1508 1509 aiptek->newSetting.mouseButtonRight = new_button; 1510 return count; 1511} 1512 1513static DEVICE_ATTR(mouse_right, 1514 S_IRUGO | S_IWUSR, 1515 show_tabletMouseRight, store_tabletMouseRight); 1516 1517/*********************************************************************** 1518 * support routines for the 'wheel' file. Note that this file 1519 * both displays current setting and allows for setting changing. 1520 */ 1521static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf) 1522{ 1523 struct aiptek *aiptek = dev_get_drvdata(dev); 1524 1525 if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) { 1526 return sysfs_emit(buf, "disable\n"); 1527 } else { 1528 return sysfs_emit(buf, "%d\n", aiptek->curSetting.wheel); 1529 } 1530} 1531 1532static ssize_t 1533store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1534{ 1535 struct aiptek *aiptek = dev_get_drvdata(dev); 1536 int err, w; 1537 1538 err = kstrtoint(buf, 10, &w); 1539 if (err) 1540 return err; 1541 1542 aiptek->newSetting.wheel = w; 1543 return count; 1544} 1545 1546static DEVICE_ATTR(wheel, 1547 S_IRUGO | S_IWUSR, show_tabletWheel, store_tabletWheel); 1548 1549/*********************************************************************** 1550 * support routines for the 'execute' file. Note that this file 1551 * both displays current setting and allows for setting changing. 1552 */ 1553static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf) 1554{ 1555 /* There is nothing useful to display, so a one-line manual 1556 * is in order... 1557 */ 1558 return sysfs_emit(buf, "Write anything to this file to program your tablet.\n"); 1559} 1560 1561static ssize_t 1562store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 1563{ 1564 struct aiptek *aiptek = dev_get_drvdata(dev); 1565 1566 /* We do not care what you write to this file. Merely the action 1567 * of writing to this file triggers a tablet reprogramming. 1568 */ 1569 memcpy(&aiptek->curSetting, &aiptek->newSetting, 1570 sizeof(struct aiptek_settings)); 1571 1572 if (aiptek_program_tablet(aiptek) < 0) 1573 return -EIO; 1574 1575 return count; 1576} 1577 1578static DEVICE_ATTR(execute, 1579 S_IRUGO | S_IWUSR, show_tabletExecute, store_tabletExecute); 1580 1581/*********************************************************************** 1582 * support routines for the 'odm_code' file. Note that this file 1583 * only displays current setting. 1584 */ 1585static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf) 1586{ 1587 struct aiptek *aiptek = dev_get_drvdata(dev); 1588 1589 return sysfs_emit(buf, "0x%04x\n", aiptek->features.odmCode); 1590} 1591 1592static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL); 1593 1594/*********************************************************************** 1595 * support routines for the 'model_code' file. Note that this file 1596 * only displays current setting. 1597 */ 1598static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf) 1599{ 1600 struct aiptek *aiptek = dev_get_drvdata(dev); 1601 1602 return sysfs_emit(buf, "0x%04x\n", aiptek->features.modelCode); 1603} 1604 1605static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL); 1606 1607/*********************************************************************** 1608 * support routines for the 'firmware_code' file. Note that this file 1609 * only displays current setting. 1610 */ 1611static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf) 1612{ 1613 struct aiptek *aiptek = dev_get_drvdata(dev); 1614 1615 return sysfs_emit(buf, "%04x\n", aiptek->features.firmwareCode); 1616} 1617 1618static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL); 1619 1620static struct attribute *aiptek_dev_attrs[] = { 1621 &dev_attr_size.attr, 1622 &dev_attr_pointer_mode.attr, 1623 &dev_attr_coordinate_mode.attr, 1624 &dev_attr_tool_mode.attr, 1625 &dev_attr_xtilt.attr, 1626 &dev_attr_ytilt.attr, 1627 &dev_attr_jitter.attr, 1628 &dev_attr_delay.attr, 1629 &dev_attr_event_count.attr, 1630 &dev_attr_diagnostic.attr, 1631 &dev_attr_odm_code.attr, 1632 &dev_attr_model_code.attr, 1633 &dev_attr_firmware_code.attr, 1634 &dev_attr_stylus_lower.attr, 1635 &dev_attr_stylus_upper.attr, 1636 &dev_attr_mouse_left.attr, 1637 &dev_attr_mouse_middle.attr, 1638 &dev_attr_mouse_right.attr, 1639 &dev_attr_wheel.attr, 1640 &dev_attr_execute.attr, 1641 NULL 1642}; 1643 1644ATTRIBUTE_GROUPS(aiptek_dev); 1645 1646/*********************************************************************** 1647 * This routine is called when a tablet has been identified. It basically 1648 * sets up the tablet and the driver's internal structures. 1649 */ 1650static int 1651aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id) 1652{ 1653 struct usb_device *usbdev = interface_to_usbdev(intf); 1654 struct usb_endpoint_descriptor *endpoint; 1655 struct aiptek *aiptek; 1656 struct input_dev *inputdev; 1657 int i; 1658 int speeds[] = { 0, 1659 AIPTEK_PROGRAMMABLE_DELAY_50, 1660 AIPTEK_PROGRAMMABLE_DELAY_400, 1661 AIPTEK_PROGRAMMABLE_DELAY_25, 1662 AIPTEK_PROGRAMMABLE_DELAY_100, 1663 AIPTEK_PROGRAMMABLE_DELAY_200, 1664 AIPTEK_PROGRAMMABLE_DELAY_300 1665 }; 1666 int err = -ENOMEM; 1667 1668 /* programmableDelay is where the command-line specified 1669 * delay is kept. We make it the first element of speeds[], 1670 * so therefore, your override speed is tried first, then the 1671 * remainder. Note that the default value of 400ms will be tried 1672 * if you do not specify any command line parameter. 1673 */ 1674 speeds[0] = programmableDelay; 1675 1676 aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL); 1677 inputdev = input_allocate_device(); 1678 if (!aiptek || !inputdev) { 1679 dev_warn(&intf->dev, 1680 "cannot allocate memory or input device\n"); 1681 goto fail1; 1682 } 1683 1684 aiptek->data = usb_alloc_coherent(usbdev, AIPTEK_PACKET_LENGTH, 1685 GFP_KERNEL, &aiptek->data_dma); 1686 if (!aiptek->data) { 1687 dev_warn(&intf->dev, "cannot allocate usb buffer\n"); 1688 goto fail1; 1689 } 1690 1691 aiptek->urb = usb_alloc_urb(0, GFP_KERNEL); 1692 if (!aiptek->urb) { 1693 dev_warn(&intf->dev, "cannot allocate urb\n"); 1694 goto fail2; 1695 } 1696 1697 aiptek->inputdev = inputdev; 1698 aiptek->intf = intf; 1699 aiptek->ifnum = intf->cur_altsetting->desc.bInterfaceNumber; 1700 aiptek->inDelay = 0; 1701 aiptek->endDelay = 0; 1702 aiptek->previousJitterable = 0; 1703 aiptek->lastMacro = -1; 1704 1705 /* Set up the curSettings struct. Said struct contains the current 1706 * programmable parameters. The newSetting struct contains changes 1707 * the user makes to the settings via the sysfs interface. Those 1708 * changes are not "committed" to curSettings until the user 1709 * writes to the sysfs/.../execute file. 1710 */ 1711 aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE; 1712 aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE; 1713 aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE; 1714 aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE; 1715 aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE; 1716 aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON; 1717 aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON; 1718 aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON; 1719 aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON; 1720 aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON; 1721 aiptek->curSetting.jitterDelay = jitterDelay; 1722 aiptek->curSetting.programmableDelay = programmableDelay; 1723 1724 /* Both structs should have equivalent settings 1725 */ 1726 aiptek->newSetting = aiptek->curSetting; 1727 1728 /* Determine the usb devices' physical path. 1729 * Asketh not why we always pretend we're using "../input0", 1730 * but I suspect this will have to be refactored one 1731 * day if a single USB device can be a keyboard & a mouse 1732 * & a tablet, and the inputX number actually will tell 1733 * us something... 1734 */ 1735 usb_make_path(usbdev, aiptek->features.usbPath, 1736 sizeof(aiptek->features.usbPath)); 1737 strlcat(aiptek->features.usbPath, "/input0", 1738 sizeof(aiptek->features.usbPath)); 1739 1740 /* Set up client data, pointers to open and close routines 1741 * for the input device. 1742 */ 1743 inputdev->name = "Aiptek"; 1744 inputdev->phys = aiptek->features.usbPath; 1745 usb_to_input_id(usbdev, &inputdev->id); 1746 inputdev->dev.parent = &intf->dev; 1747 1748 input_set_drvdata(inputdev, aiptek); 1749 1750 inputdev->open = aiptek_open; 1751 inputdev->close = aiptek_close; 1752 1753 /* Now program the capacities of the tablet, in terms of being 1754 * an input device. 1755 */ 1756 for (i = 0; i < ARRAY_SIZE(eventTypes); ++i) 1757 __set_bit(eventTypes[i], inputdev->evbit); 1758 1759 for (i = 0; i < ARRAY_SIZE(absEvents); ++i) 1760 __set_bit(absEvents[i], inputdev->absbit); 1761 1762 for (i = 0; i < ARRAY_SIZE(relEvents); ++i) 1763 __set_bit(relEvents[i], inputdev->relbit); 1764 1765 __set_bit(MSC_SERIAL, inputdev->mscbit); 1766 1767 /* Set up key and button codes */ 1768 for (i = 0; i < ARRAY_SIZE(buttonEvents); ++i) 1769 __set_bit(buttonEvents[i], inputdev->keybit); 1770 1771 for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i) 1772 __set_bit(macroKeyEvents[i], inputdev->keybit); 1773 1774 /* 1775 * Program the input device coordinate capacities. We do not yet 1776 * know what maximum X, Y, and Z values are, so we're putting fake 1777 * values in. Later, we'll ask the tablet to put in the correct 1778 * values. 1779 */ 1780 input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0); 1781 input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0); 1782 input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0); 1783 input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0); 1784 input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0); 1785 input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0); 1786 1787 err = usb_find_common_endpoints(intf->cur_altsetting, 1788 NULL, NULL, &endpoint, NULL); 1789 if (err) { 1790 dev_err(&intf->dev, 1791 "interface has no int in endpoints, but must have minimum 1\n"); 1792 goto fail3; 1793 } 1794 1795 /* Go set up our URB, which is called when the tablet receives 1796 * input. 1797 */ 1798 usb_fill_int_urb(aiptek->urb, 1799 usbdev, 1800 usb_rcvintpipe(usbdev, 1801 endpoint->bEndpointAddress), 1802 aiptek->data, 8, aiptek_irq, aiptek, 1803 endpoint->bInterval); 1804 1805 aiptek->urb->transfer_dma = aiptek->data_dma; 1806 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1807 1808 /* Program the tablet. This sets the tablet up in the mode 1809 * specified in newSetting, and also queries the tablet's 1810 * physical capacities. 1811 * 1812 * Sanity check: if a tablet doesn't like the slow programmatic 1813 * delay, we often get sizes of 0x0. Let's use that as an indicator 1814 * to try faster delays, up to 25 ms. If that logic fails, well, you'll 1815 * have to explain to us how your tablet thinks it's 0x0, and yet that's 1816 * not an error :-) 1817 */ 1818 1819 for (i = 0; i < ARRAY_SIZE(speeds); ++i) { 1820 aiptek->curSetting.programmableDelay = speeds[i]; 1821 (void)aiptek_program_tablet(aiptek); 1822 if (input_abs_get_max(aiptek->inputdev, ABS_X) > 0) { 1823 dev_info(&intf->dev, 1824 "Aiptek using %d ms programming speed\n", 1825 aiptek->curSetting.programmableDelay); 1826 break; 1827 } 1828 } 1829 1830 /* Murphy says that some day someone will have a tablet that fails the 1831 above test. That's you, Frederic Rodrigo */ 1832 if (i == ARRAY_SIZE(speeds)) { 1833 dev_info(&intf->dev, 1834 "Aiptek tried all speeds, no sane response\n"); 1835 err = -EINVAL; 1836 goto fail3; 1837 } 1838 1839 /* Associate this driver's struct with the usb interface. 1840 */ 1841 usb_set_intfdata(intf, aiptek); 1842 1843 /* Register the tablet as an Input Device 1844 */ 1845 err = input_register_device(aiptek->inputdev); 1846 if (err) { 1847 dev_warn(&intf->dev, 1848 "input_register_device returned err: %d\n", err); 1849 goto fail3; 1850 } 1851 return 0; 1852 1853 fail3: usb_free_urb(aiptek->urb); 1854 fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data, 1855 aiptek->data_dma); 1856 fail1: usb_set_intfdata(intf, NULL); 1857 input_free_device(inputdev); 1858 kfree(aiptek); 1859 return err; 1860} 1861 1862/*********************************************************************** 1863 * Deal with tablet disconnecting from the system. 1864 */ 1865static void aiptek_disconnect(struct usb_interface *intf) 1866{ 1867 struct aiptek *aiptek = usb_get_intfdata(intf); 1868 1869 /* Disassociate driver's struct with usb interface 1870 */ 1871 usb_set_intfdata(intf, NULL); 1872 if (aiptek != NULL) { 1873 /* Free & unhook everything from the system. 1874 */ 1875 usb_kill_urb(aiptek->urb); 1876 input_unregister_device(aiptek->inputdev); 1877 usb_free_urb(aiptek->urb); 1878 usb_free_coherent(interface_to_usbdev(intf), 1879 AIPTEK_PACKET_LENGTH, 1880 aiptek->data, aiptek->data_dma); 1881 kfree(aiptek); 1882 } 1883} 1884 1885static struct usb_driver aiptek_driver = { 1886 .name = "aiptek", 1887 .probe = aiptek_probe, 1888 .disconnect = aiptek_disconnect, 1889 .id_table = aiptek_ids, 1890 .dev_groups = aiptek_dev_groups, 1891}; 1892 1893module_usb_driver(aiptek_driver); 1894 1895MODULE_AUTHOR("Bryan W. Headley/Chris Atenasio/Cedric Brun/Rene van Paassen"); 1896MODULE_DESCRIPTION("Aiptek HyperPen USB Tablet Driver"); 1897MODULE_LICENSE("GPL"); 1898 1899module_param(programmableDelay, int, 0); 1900MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming"); 1901module_param(jitterDelay, int, 0); 1902MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay"); 1903