diff options
Diffstat (limited to 'drivers/input/tablet/aiptek.c')
| -rw-r--r-- | drivers/input/tablet/aiptek.c | 2236 |
1 files changed, 2236 insertions, 0 deletions
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c new file mode 100644 index 0000000..cc0a498 --- /dev/null +++ b/drivers/input/tablet/aiptek.c @@ -0,0 +1,2236 @@ +/* + * Native support for the Aiptek HyperPen USB Tablets + * (4000U/5000U/6000U/8000U/12000U) + * + * Copyright (c) 2001 Chris Atenasio <chris@crud.net> + * Copyright (c) 2002-2004 Bryan W. Headley <bwheadley@earthlink.net> + * + * based on wacom.c by + * Vojtech Pavlik <vojtech@suse.cz> + * Andreas Bach Aaen <abach@stofanet.dk> + * Clifford Wolf <clifford@clifford.at> + * Sam Mosel <sam.mosel@computer.org> + * James E. Blair <corvus@gnu.org> + * Daniel Egger <egger@suse.de> + * + * Many thanks to Oliver Kuechemann for his support. + * + * ChangeLog: + * v0.1 - Initial release + * v0.2 - Hack to get around fake event 28's. (Bryan W. Headley) + * v0.3 - Make URB dynamic (Bryan W. Headley, Jun-8-2002) + * Released to Linux 2.4.19 and 2.5.x + * v0.4 - Rewrote substantial portions of the code to deal with + * corrected control sequences, timing, dynamic configuration, + * support of 6000U - 12000U, procfs, and macro key support + * (Jan-1-2003 - Feb-5-2003, Bryan W. Headley) + * v1.0 - Added support for diagnostic messages, count of messages + * received from URB - Mar-8-2003, Bryan W. Headley + * v1.1 - added support for tablet resolution, changed DV and proximity + * some corrections - Jun-22-2003, martin schneebacher + * - Added support for the sysfs interface, deprecating the + * procfs interface for 2.5.x kernel. Also added support for + * Wheel command. Bryan W. Headley July-15-2003. + * v1.2 - Reworked jitter timer as a kernel thread. + * Bryan W. Headley November-28-2003/Jan-10-2004. + * v1.3 - Repaired issue of kernel thread going nuts on single-processor + * machines, introduced programmableDelay as a command line + * parameter. Feb 7 2004, Bryan W. Headley. + * v1.4 - Re-wire jitter so it does not require a thread. Courtesy of + * Rene van Paassen. Added reporting of physical pointer device + * (e.g., stylus, mouse in reports 2, 3, 4, 5. We don't know + * for reports 1, 6.) + * what physical device reports for reports 1, 6.) Also enabled + * MOUSE and LENS tool button modes. Renamed "rubber" to "eraser". + * Feb 20, 2004, Bryan W. Headley. + * v1.5 - Added previousJitterable, so we don't do jitter delay when the + * user is holding a button down for periods of time. + * + * NOTE: + * This kernel driver is augmented by the "Aiptek" XFree86 input + * driver for your X server, as well as the Gaiptek GUI Front-end + * "Tablet Manager". + * These three products are highly interactive with one another, + * so therefore it's easier to document them all as one subsystem. + * Please visit the project's "home page", located at, + * http://aiptektablet.sourceforge.net. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/jiffies.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/usb/input.h> +#include <asm/uaccess.h> +#include <asm/unaligned.h> + +/* + * Version Information + */ +#define DRIVER_VERSION "v1.5 (May-15-2004)" +#define DRIVER_AUTHOR "Bryan W. Headley/Chris Atenasio" +#define DRIVER_DESC "Aiptek HyperPen USB Tablet Driver (Linux 2.6.x)" + +/* + * Aiptek status packet: + * + * (returned as Report 1 - relative coordinates from mouse and stylus) + * + * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 + * byte0 0 0 0 0 0 0 0 1 + * byte1 0 0 0 0 0 BS2 BS Tip + * byte2 X7 X6 X5 X4 X3 X2 X1 X0 + * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 + * + * (returned as Report 2 - absolute coordinates from the stylus) + * + * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 + * byte0 0 0 0 0 0 0 1 0 + * byte1 X7 X6 X5 X4 X3 X2 X1 X0 + * byte2 X15 X14 X13 X12 X11 X10 X9 X8 + * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 + * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8 + * byte5 * * * BS2 BS1 Tip IR DV + * byte6 P7 P6 P5 P4 P3 P2 P1 P0 + * byte7 P15 P14 P13 P12 P11 P10 P9 P8 + * + * (returned as Report 3 - absolute coordinates from the mouse) + * + * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 + * byte0 0 0 0 0 0 0 1 0 + * byte1 X7 X6 X5 X4 X3 X2 X1 X0 + * byte2 X15 X14 X13 X12 X11 X10 X9 X8 + * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 + * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8 + * byte5 * * * BS2 BS1 Tip IR DV + * byte6 P7 P6 P5 P4 P3 P2 P1 P0 + * byte7 P15 P14 P13 P12 P11 P10 P9 P8 + * + * (returned as Report 4 - macrokeys from the stylus) + * + * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 + * byte0 0 0 0 0 0 1 0 0 + * byte1 0 0 0 BS2 BS Tip IR DV + * byte2 0 0 0 0 0 0 1 0 + * byte3 0 0 0 K4 K3 K2 K1 K0 + * byte4 P7 P6 P5 P4 P3 P2 P1 P0 + * byte5 P15 P14 P13 P12 P11 P10 P9 P8 + * + * (returned as Report 5 - macrokeys from the mouse) + * + * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 + * byte0 0 0 0 0 0 1 0 0 + * byte1 0 0 0 BS2 BS Tip IR DV + * byte2 0 0 0 0 0 0 1 0 + * byte3 0 0 0 K4 K3 K2 K1 K0 + * byte4 P7 P6 P5 P4 P3 P2 P1 P0 + * byte5 P15 P14 P13 P12 P11 P10 P9 P8 + * + * IR: In Range = Proximity on + * DV = Data Valid + * BS = Barrel Switch (as in, macro keys) + * BS2 also referred to as Tablet Pick + * + * Command Summary: + * + * Use report_type CONTROL (3) + * Use report_id 2 + * + * Command/Data Description Return Bytes Return Value + * 0x10/0x00 SwitchToMouse 0 + * 0x10/0x01 SwitchToTablet 0 + * 0x18/0x04 SetResolution 0 + * 0x12/0xFF AutoGainOn 0 + * 0x17/0x00 FilterOn 0 + * 0x01/0x00 GetXExtension 2 MaxX + * 0x01/0x01 GetYExtension 2 MaxY + * 0x02/0x00 GetModelCode 2 ModelCode = LOBYTE + * 0x03/0x00 GetODMCode 2 ODMCode + * 0x08/0x00 GetPressureLevels 2 =512 + * 0x04/0x00 GetFirmwareVersion 2 Firmware Version + * 0x11/0x02 EnableMacroKeys 0 + * + * To initialize the tablet: + * + * (1) Send Resolution500LPI (Command) + * (2) Query for Model code (Option Report) + * (3) Query for ODM code (Option Report) + * (4) Query for firmware (Option Report) + * (5) Query for GetXExtension (Option Report) + * (6) Query for GetYExtension (Option Report) + * (7) Query for GetPressureLevels (Option Report) + * (8) SwitchToTablet for Absolute coordinates, or + * SwitchToMouse for Relative coordinates (Command) + * (9) EnableMacroKeys (Command) + * (10) FilterOn (Command) + * (11) AutoGainOn (Command) + * + * (Step 9 can be omitted, but you'll then have no function keys.) + */ + +#define USB_VENDOR_ID_AIPTEK 0x08ca +#define USB_REQ_GET_REPORT 0x01 +#define USB_REQ_SET_REPORT 0x09 + + /* PointerMode codes + */ +#define AIPTEK_POINTER_ONLY_MOUSE_MODE 0 +#define AIPTEK_POINTER_ONLY_STYLUS_MODE 1 +#define AIPTEK_POINTER_EITHER_MODE 2 + +#define AIPTEK_POINTER_ALLOW_MOUSE_MODE(a) \ + (a == AIPTEK_POINTER_ONLY_MOUSE_MODE || \ + a == AIPTEK_POINTER_EITHER_MODE) +#define AIPTEK_POINTER_ALLOW_STYLUS_MODE(a) \ + (a == AIPTEK_POINTER_ONLY_STYLUS_MODE || \ + a == AIPTEK_POINTER_EITHER_MODE) + + /* CoordinateMode code + */ +#define AIPTEK_COORDINATE_RELATIVE_MODE 0 +#define AIPTEK_COORDINATE_ABSOLUTE_MODE 1 + + /* XTilt and YTilt values + */ +#define AIPTEK_TILT_MIN (-128) +#define AIPTEK_TILT_MAX 127 +#define AIPTEK_TILT_DISABLE (-10101) + + /* Wheel values + */ +#define AIPTEK_WHEEL_MIN 0 +#define AIPTEK_WHEEL_MAX 1024 +#define AIPTEK_WHEEL_DISABLE (-10101) + + /* ToolCode values, which BTW are 0x140 .. 0x14f + * We have things set up such that if TOOL_BUTTON_FIRED_BIT is + * not set, we'll send one instance of AIPTEK_TOOL_BUTTON_xxx. + * + * Whenever the user resets the value, TOOL_BUTTON_FIRED_BIT will + * get reset. + */ +#define TOOL_BUTTON(x) ((x) & 0x14f) +#define TOOL_BUTTON_FIRED(x) ((x) & 0x200) +#define TOOL_BUTTON_FIRED_BIT 0x200 + /* toolMode codes + */ +#define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN +#define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN +#define AIPTEK_TOOL_BUTTON_PENCIL_MODE BTN_TOOL_PENCIL +#define AIPTEK_TOOL_BUTTON_BRUSH_MODE BTN_TOOL_BRUSH +#define AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE BTN_TOOL_AIRBRUSH +#define AIPTEK_TOOL_BUTTON_ERASER_MODE BTN_TOOL_RUBBER +#define AIPTEK_TOOL_BUTTON_MOUSE_MODE BTN_TOOL_MOUSE +#define AIPTEK_TOOL_BUTTON_LENS_MODE BTN_TOOL_LENS + + /* Diagnostic message codes + */ +#define AIPTEK_DIAGNOSTIC_NA 0 +#define AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE 1 +#define AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE 2 +#define AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED 3 + + /* Time to wait (in ms) to help mask hand jittering + * when pressing the stylus buttons. + */ +#define AIPTEK_JITTER_DELAY_DEFAULT 50 + + /* Time to wait (in ms) in-between sending the tablet + * a command and beginning the process of reading the return + * sequence from the tablet. + */ +#define AIPTEK_PROGRAMMABLE_DELAY_25 25 +#define AIPTEK_PROGRAMMABLE_DELAY_50 50 +#define AIPTEK_PROGRAMMABLE_DELAY_100 100 +#define AIPTEK_PROGRAMMABLE_DELAY_200 200 +#define AIPTEK_PROGRAMMABLE_DELAY_300 300 +#define AIPTEK_PROGRAMMABLE_DELAY_400 400 +#define AIPTEK_PROGRAMMABLE_DELAY_DEFAULT AIPTEK_PROGRAMMABLE_DELAY_400 + + /* Mouse button programming + */ +#define AIPTEK_MOUSE_LEFT_BUTTON 0x01 +#define AIPTEK_MOUSE_RIGHT_BUTTON 0x02 +#define AIPTEK_MOUSE_MIDDLE_BUTTON 0x04 + + /* Stylus button programming + */ +#define AIPTEK_STYLUS_LOWER_BUTTON 0x08 +#define AIPTEK_STYLUS_UPPER_BUTTON 0x10 + + /* Length of incoming packet from the tablet + */ +#define AIPTEK_PACKET_LENGTH 8 + + /* We report in EV_MISC both the proximity and + * whether the report came from the stylus, tablet mouse + * or "unknown" -- Unknown when the tablet is in relative + * mode, because we only get report 1's. + */ +#define AIPTEK_REPORT_TOOL_UNKNOWN 0x10 +#define AIPTEK_REPORT_TOOL_STYLUS 0x20 +#define AIPTEK_REPORT_TOOL_MOUSE 0x40 + +static int programmableDelay = AIPTEK_PROGRAMMABLE_DELAY_DEFAULT; +static int jitterDelay = AIPTEK_JITTER_DELAY_DEFAULT; + +struct aiptek_features { + int odmCode; /* Tablet manufacturer code */ + int modelCode; /* Tablet model code (not unique) */ + int firmwareCode; /* prom/eeprom version */ + char usbPath[64 + 1]; /* device's physical usb path */ + char inputPath[64 + 1]; /* input device path */ +}; + +struct aiptek_settings { + int pointerMode; /* stylus-, mouse-only or either */ + int coordinateMode; /* absolute/relative coords */ + int toolMode; /* pen, pencil, brush, etc. tool */ + int xTilt; /* synthetic xTilt amount */ + int yTilt; /* synthetic yTilt amount */ + int wheel; /* synthetic wheel amount */ + int stylusButtonUpper; /* stylus upper btn delivers... */ + int stylusButtonLower; /* stylus lower btn delivers... */ + int mouseButtonLeft; /* mouse left btn delivers... */ + int mouseButtonMiddle; /* mouse middle btn delivers... */ + int mouseButtonRight; /* mouse right btn delivers... */ + int programmableDelay; /* delay for tablet programming */ + int jitterDelay; /* delay for hand jittering */ +}; + +struct aiptek { + struct input_dev *inputdev; /* input device struct */ + struct usb_device *usbdev; /* usb device struct */ + struct urb *urb; /* urb for incoming reports */ + dma_addr_t data_dma; /* our dma stuffage */ + struct aiptek_features features; /* tablet's array of features */ + struct aiptek_settings curSetting; /* tablet's current programmable */ + struct aiptek_settings newSetting; /* ... and new param settings */ + unsigned int ifnum; /* interface number for IO */ + int diagnostic; /* tablet diagnostic codes */ + unsigned long eventCount; /* event count */ + int inDelay; /* jitter: in jitter delay? */ + unsigned long endDelay; /* jitter: time when delay ends */ + int previousJitterable; /* jitterable prev value */ + unsigned char *data; /* incoming packet data */ +}; + +/* + * Permit easy lookup of keyboard events to send, versus + * the bitmap which comes from the tablet. This hides the + * issue that the F_keys are not sequentially numbered. + */ +static const int macroKeyEvents[] = { + KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, + KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, + KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17, + KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23, + KEY_F24, KEY_STOP, KEY_AGAIN, KEY_PROPS, KEY_UNDO, + KEY_FRONT, KEY_COPY, KEY_OPEN, KEY_PASTE, 0 +}; + +/*********************************************************************** + * Relative reports deliver values in 2's complement format to + * deal with negative offsets. + */ +static int aiptek_convert_from_2s_complement(unsigned char c) +{ + int ret; + unsigned char b = c; + int negate = 0; + + if ((b & 0x80) != 0) { + b = ~b; + b--; + negate = 1; + } + ret = b; + ret = (negate == 1) ? -ret : ret; + return ret; +} + +/*********************************************************************** + * aiptek_irq can receive one of six potential reports. + * The documentation for each is in the body of the function. + * + * The tablet reports on several attributes per invocation of + * aiptek_irq. Because the Linux Input Event system allows the + * transmission of ONE attribute per input_report_xxx() call, + * collation has to be done on the other end to reconstitute + * a complete tablet report. Further, the number of Input Event reports + * submitted varies, depending on what USB report type, and circumstance. + * To deal with this, EV_MSC is used to indicate an 'end-of-report' + * message. This has been an undocumented convention understood by the kernel + * tablet driver and clients such as gpm and XFree86's tablet drivers. + * + * Of the information received from the tablet, the one piece I + * cannot transmit is the proximity bit (without resorting to an EV_MSC + * convention above.) I therefore have taken over REL_MISC and ABS_MISC + * (for relative and absolute reports, respectively) for communicating + * Proximity. Why two events? I thought it interesting to know if the + * Proximity event occurred while the tablet was in absolute or relative + * mode. + * + * Other tablets use the notion of a certain minimum stylus pressure + * to infer proximity. While that could have been done, that is yet + * another 'by convention' behavior, the documentation for which + * would be spread between two (or more) pieces of software. + * + * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and + * replaced with the input_sync() method (which emits EV_SYN.) + */ + +static void aiptek_irq(struct urb *urb) +{ + struct aiptek *aiptek = urb->context; + unsigned char *data = aiptek->data; + struct input_dev *inputdev = aiptek->inputdev; + int jitterable = 0; + int retval, macro, x, y, z, left, right, middle, p, dv, tip, bs, pck; + + switch (urb->status) { + case 0: + /* Success */ + break; + + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* This urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, urb->status); + return; + + default: + dbg("%s - nonzero urb status received: %d", + __FUNCTION__, urb->status); + goto exit; + } + + /* See if we are in a delay loop -- throw out report if true. + */ + if (aiptek->inDelay == 1 && time_after(aiptek->endDelay, jiffies)) { + goto exit; + } + + aiptek->inDelay = 0; + aiptek->eventCount++; + + /* Report 1 delivers relative coordinates with either a stylus + * or the mouse. You do not know, however, which input + * tool generated the event. + */ + if (data[0] == 1) { + if (aiptek->curSetting.coordinateMode == + AIPTEK_COORDINATE_ABSOLUTE_MODE) { + aiptek->diagnostic = + AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE; + } else { + x = aiptek_convert_from_2s_complement(data[2]); + y = aiptek_convert_from_2s_complement(data[3]); + + /* jitterable keeps track of whether any button has been pressed. + * We're also using it to remap the physical mouse button mask + * to pseudo-settings. (We don't specifically care about it's + * value after moving/transposing mouse button bitmasks, except + * that a non-zero value indicates that one or more + * mouse button was pressed.) + */ + jitterable = data[5] & 0x07; + + left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0; + right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0; + middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0; + + input_report_key(inputdev, BTN_LEFT, left); + input_report_key(inputdev, BTN_MIDDLE, middle); + input_report_key(inputdev, BTN_RIGHT, right); + input_report_rel(inputdev, REL_X, x); + input_report_rel(inputdev, REL_Y, y); + input_report_rel(inputdev, REL_MISC, 1 | AIPTEK_REPORT_TOOL_UNKNOWN); + + /* Wheel support is in the form of a single-event + * firing. + */ + if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) { + input_report_rel(inputdev, REL_WHEEL, + aiptek->curSetting.wheel); + aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE; + } + input_sync(inputdev); + } + } + /* Report 2 is delivered only by the stylus, and delivers + * absolute coordinates. + */ + else if (data[0] == 2) { + if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) { + aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE; + } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE + (aiptek->curSetting.pointerMode)) { + aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED; + } else { + x = le16_to_cpu(get_unaligned((__le16 *) (data + 1))); + y = le16_to_cpu(get_unaligned((__le16 *) (data + 3))); + z = le16_to_cpu(get_unaligned((__le16 *) (data + 6))); + + p = (data[5] & 0x01) != 0 ? 1 : 0; + dv = (data[5] & 0x02) != 0 ? 1 : 0; + tip = (data[5] & 0x04) != 0 ? 1 : 0; + + /* Use jitterable to re-arrange button masks + */ + jitterable = data[5] & 0x18; + + bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0; + pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0; + + /* dv indicates 'data valid' (e.g., the tablet is in sync + * and has delivered a "correct" report) We will ignore + * all 'bad' reports... + */ + if (dv != 0) { + /* If we've not already sent a tool_button_?? code, do + * so now. Then set FIRED_BIT so it won't be resent unless + * the user forces FIRED_BIT off. + */ + if (TOOL_BUTTON_FIRED + (aiptek->curSetting.toolMode) == 0) { + input_report_key(inputdev, + TOOL_BUTTON(aiptek->curSetting.toolMode), + 1); + aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT; + } + + if (p != 0) { + input_report_abs(inputdev, ABS_X, x); + input_report_abs(inputdev, ABS_Y, y); + input_report_abs(inputdev, ABS_PRESSURE, z); + + input_report_key(inputdev, BTN_TOUCH, tip); + input_report_key(inputdev, BTN_STYLUS, bs); + input_report_key(inputdev, BTN_STYLUS2, pck); + + if (aiptek->curSetting.xTilt != + AIPTEK_TILT_DISABLE) { + input_report_abs(inputdev, + ABS_TILT_X, + aiptek->curSetting.xTilt); + } + if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) { + input_report_abs(inputdev, + ABS_TILT_Y, + aiptek->curSetting.yTilt); + } + + /* Wheel support is in the form of a single-event + * firing. + */ + if (aiptek->curSetting.wheel != + AIPTEK_WHEEL_DISABLE) { + input_report_abs(inputdev, + ABS_WHEEL, + aiptek->curSetting.wheel); + aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE; + } + } + input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS); + input_sync(inputdev); + } + } + } + /* Report 3's come from the mouse in absolute mode. + */ + else if (data[0] == 3) { + if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) { + aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE; + } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE + (aiptek->curSetting.pointerMode)) { + aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED; + } else { + x = le16_to_cpu(get_unaligned((__le16 *) (data + 1))); + y = le16_to_cpu(get_unaligned((__le16 *) (data + 3))); + + jitterable = data[5] & 0x1c; + + p = (data[5] & 0x01) != 0 ? 1 : 0; + dv = (data[5] & 0x02) != 0 ? 1 : 0; + left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0; + right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0; + middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0; + + if (dv != 0) { + /* If we've not already sent a tool_button_?? code, do + * so now. Then set FIRED_BIT so it won't be resent unless + * the user forces FIRED_BIT off. + */ + if (TOOL_BUTTON_FIRED + (aiptek->curSetting.toolMode) == 0) { + input_report_key(inputdev, + TOOL_BUTTON(aiptek->curSetting.toolMode), + 1); + aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT; + } + + if (p != 0) { + input_report_abs(inputdev, ABS_X, x); + input_report_abs(inputdev, ABS_Y, y); + + input_report_key(inputdev, BTN_LEFT, left); + input_report_key(inputdev, BTN_MIDDLE, middle); + input_report_key(inputdev, BTN_RIGHT, right); + + /* Wheel support is in the form of a single-event + * firing. + */ + if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) { + input_report_abs(inputdev, + ABS_WHEEL, + aiptek->curSetting.wheel); + aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE; + } + } + input_report_rel(inputdev, REL_MISC, p | AIPTEK_REPORT_TOOL_MOUSE); + input_sync(inputdev); + } + } + } + /* Report 4s come from the macro keys when pressed by stylus + */ + else if (data[0] == 4) { + jitterable = data[1] & 0x18; + + p = (data[1] & 0x01) != 0 ? 1 : 0; + dv = (data[1] & 0x02) != 0 ? 1 : 0; + tip = (data[1] & 0x04) != 0 ? 1 : 0; + bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0; + pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0; + + macro = data[3]; + z = le16_to_cpu(get_unaligned((__le16 *) (data + 4))); + + if (dv != 0) { + /* If we've not already sent a tool_button_?? code, do + * so now. Then set FIRED_BIT so it won't be resent unless + * the user forces FIRED_BIT off. + */ + if (TOOL_BUTTON_FIRED(aiptek->curSetting.toolMode) == 0) { + input_report_key(inputdev, + TOOL_BUTTON(aiptek->curSetting.toolMode), + 1); + aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT; + } + + if (p != 0) { + input_report_key(inputdev, BTN_TOUCH, tip); + input_report_key(inputdev, BTN_STYLUS, bs); + input_report_key(inputdev, BTN_STYLUS2, pck); + input_report_abs(inputdev, ABS_PRESSURE, z); + } + + /* For safety, we're sending key 'break' codes for the + * neighboring macro keys. + */ + if (macro > 0) { + input_report_key(inputdev, + macroKeyEvents[macro - 1], 0); + } + if (macro < 25) { + input_report_key(inputdev, + macroKeyEvents[macro + 1], 0); + } + input_report_key(inputdev, macroKeyEvents[macro], p); + input_report_abs(inputdev, ABS_MISC, + p | AIPTEK_REPORT_TOOL_STYLUS); + input_sync(inputdev); + } + } + /* Report 5s come from the macro keys when pressed by mouse + */ + else if (data[0] == 5) { + jitterable = data[1] & 0x1c; + + p = (data[1] & 0x01) != 0 ? 1 : 0; + dv = (data[1] & 0x02) != 0 ? 1 : 0; + left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0; + right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0; + middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0; + macro = data[3]; + + if (dv != 0) { + /* If we've not already sent a tool_button_?? code, do + * so now. Then set FIRED_BIT so it won't be resent unless + * the user forces FIRED_BIT off. + */ + if (TOOL_BUTTON_FIRED(aiptek->curSetting.toolMode) == 0) { + input_report_key(inputdev, + TOOL_BUTTON(aiptek->curSetting.toolMode), + 1); + aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT; + } + + if (p != 0) { + input_report_key(inputdev, BTN_LEFT, left); + input_report_key(inputdev, BTN_MIDDLE, middle); + input_report_key(inputdev, BTN_RIGHT, right); + } + + /* For safety, we're sending key 'break' codes for the + * neighboring macro keys. + */ + if (macro > 0) { + input_report_key(inputdev, + macroKeyEvents[macro - 1], 0); + } + if (macro < 25) { + input_report_key(inputdev, + macroKeyEvents[macro + 1], 0); + } + + input_report_key(inputdev, macroKeyEvents[macro], 1); + input_report_rel(inputdev, ABS_MISC, + p | AIPTEK_REPORT_TOOL_MOUSE); + input_sync(inputdev); + } + } + /* We have no idea which tool can generate a report 6. Theoretically, + * neither need to, having been given reports 4 & 5 for such use. + * However, report 6 is the 'official-looking' report for macroKeys; + * reports 4 & 5 supposively are used to support unnamed, unknown + * hat switches (which just so happen to be the macroKeys.) + */ + else if (data[0] == 6) { + macro = le16_to_cpu(get_unaligned((__le16 *) (data + 1))); + if (macro > 0) { + input_report_key(inputdev, macroKeyEvents[macro - 1], + 0); + } + if (macro < 25) { + input_report_key(inputdev, macroKeyEvents[macro + 1], + 0); + } + + /* If we've not already sent a tool_button_?? code, do + * so now. Then set FIRED_BIT so it won't be resent unless + * the user forces FIRED_BIT off. + */ + if (TOOL_BUTTON_FIRED(aiptek->curSetting.toolMode) == 0) { + input_report_key(inputdev, + TOOL_BUTTON(aiptek->curSetting. + toolMode), 1); + aiptek->curSetting.toolMode |= TOOL_BUTTON_FIRED_BIT; + } + + input_report_key(inputdev, macroKeyEvents[macro], 1); + input_report_abs(inputdev, ABS_MISC, + 1 | AIPTEK_REPORT_TOOL_UNKNOWN); + input_sync(inputdev); + } else { + dbg("Unknown report %d", data[0]); + } + + /* Jitter may occur when the user presses a button on the stlyus + * or the mouse. What we do to prevent that is wait 'x' milliseconds + * following a 'jitterable' event, which should give the hand some time + * stabilize itself. + * + * We just introduced aiptek->previousJitterable to carry forth the + * notion that jitter occurs when the button state changes from on to off: + * a person drawing, holding a button down is not subject to jittering. + * With that in mind, changing from upper button depressed to lower button + * WILL transition through a jitter delay. + */ + + if (aiptek->previousJitterable != jitterable && + aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) { + aiptek->endDelay = jiffies + + ((aiptek->curSetting.jitterDelay * HZ) / 1000); + aiptek->inDelay = 1; + } + aiptek->previousJitterable = jitterable; + +exit: + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval != 0) { + err("%s - usb_submit_urb failed with result %d", + __FUNCTION__, retval); + } +} + +/*********************************************************************** + * These are the USB id's known so far. We do not identify them to + * specific Aiptek model numbers, because there has been overlaps, + * use, and reuse of id's in existing models. Certain models have + * been known to use more than one ID, indicative perhaps of + * manufacturing revisions. In any event, we consider these + * IDs to not be model-specific nor unique. + */ +static const struct usb_device_id aiptek_ids[] = { + {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)}, + {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)}, + {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)}, + {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)}, + {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)}, + {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)}, + {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)}, + {} +}; + +MODULE_DEVICE_TABLE(usb, aiptek_ids); + +/*********************************************************************** + * Open an instance of the tablet driver. + */ +static int aiptek_open(struct input_dev *inputdev) +{ + struct aiptek *aiptek = input_get_drvdata(inputdev); + + aiptek->urb->dev = aiptek->usbdev; + if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0) + return -EIO; + + return 0; +} + +/*********************************************************************** + * Close an instance of the tablet driver. + */ +static void aiptek_close(struct input_dev *inputdev) +{ + struct aiptek *aiptek = input_get_drvdata(inputdev); + + usb_kill_urb(aiptek->urb); +} + +/*********************************************************************** + * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x, + * where they were known as usb_set_report and usb_get_report. + */ +static int +aiptek_set_report(struct aiptek *aiptek, + unsigned char report_type, + unsigned char report_id, void *buffer, int size) +{ + return usb_control_msg(aiptek->usbdev, + usb_sndctrlpipe(aiptek->usbdev, 0), + USB_REQ_SET_REPORT, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | + USB_DIR_OUT, (report_type << 8) + report_id, + aiptek->ifnum, buffer, size, 5000); +} + +static int +aiptek_get_report(struct aiptek *aiptek, + unsigned char report_type, + unsigned char report_id, void *buffer, int size) +{ + return usb_control_msg(aiptek->usbdev, + usb_rcvctrlpipe(aiptek->usbdev, 0), + USB_REQ_GET_REPORT, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | + USB_DIR_IN, (report_type << 8) + report_id, + aiptek->ifnum, buffer, size, 5000); +} + +/*********************************************************************** + * Send a command to the tablet. + */ +static int +aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data) +{ + const int sizeof_buf = 3 * sizeof(u8); + int ret; + u8 *buf; + + buf = kmalloc(sizeof_buf, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + buf[0] = 2; + buf[1] = command; + buf[2] = data; + + if ((ret = + aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) { + dbg("aiptek_program: failed, tried to send: 0x%02x 0x%02x", + command, data); + } + kfree(buf); + return ret < 0 ? ret : 0; +} + +/*********************************************************************** + * Retrieve information from the tablet. Querying info is defined as first + * sending the {command,data} sequence as a command, followed by a wait + * (aka, "programmaticDelay") and then a "read" request. + */ +static int +aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data) +{ + const int sizeof_buf = 3 * sizeof(u8); + int ret; + u8 *buf; + + buf = kmalloc(sizeof_buf, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + buf[0] = 2; + buf[1] = command; + buf[2] = data; + + if (aiptek_command(aiptek, command, data) != 0) { + kfree(buf); + return -EIO; + } + msleep(aiptek->curSetting.programmableDelay); + + if ((ret = + aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) { + dbg("aiptek_query failed: returned 0x%02x 0x%02x 0x%02x", + buf[0], buf[1], buf[2]); + ret = -EIO; + } else { + ret = le16_to_cpu(get_unaligned((__le16 *) (buf + 1))); + } + kfree(buf); + return ret; +} + +/*********************************************************************** + * Program the tablet into either absolute or relative mode. + * We also get information about the tablet's size. + */ +static int aiptek_program_tablet(struct aiptek *aiptek) +{ + int ret; + /* Execute Resolution500LPI */ + if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0) + return ret; + + /* Query getModelCode */ + if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0) + return ret; + aiptek->features.modelCode = ret & 0xff; + + /* Query getODMCode */ + if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0) + return ret; + aiptek->features.odmCode = ret; + + /* Query getFirmwareCode */ + if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0) + return ret; + aiptek->features.firmwareCode = ret; + + /* Query getXextension */ + if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0) + return ret; + aiptek->inputdev->absmin[ABS_X] = 0; + aiptek->inputdev->absmax[ABS_X] = ret - 1; + + /* Query getYextension */ + if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0) + return ret; + aiptek->inputdev->absmin[ABS_Y] = 0; + aiptek->inputdev->absmax[ABS_Y] = ret - 1; + + /* Query getPressureLevels */ + if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0) + return ret; + aiptek->inputdev->absmin[ABS_PRESSURE] = 0; + aiptek->inputdev->absmax[ABS_PRESSURE] = ret - 1; + + /* Depending on whether we are in absolute or relative mode, we will + * do a switchToTablet(absolute) or switchToMouse(relative) command. + */ + if (aiptek->curSetting.coordinateMode == + AIPTEK_COORDINATE_ABSOLUTE_MODE) { + /* Execute switchToTablet */ + if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) { + return ret; + } + } else { + /* Execute switchToMouse */ + if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) { + return ret; + } + } + + /* Enable the macro keys */ + if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0) + return ret; +#if 0 + /* Execute FilterOn */ + if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0) + return ret; +#endif + + /* Execute AutoGainOn */ + if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0) + return ret; + + /* Reset the eventCount, so we track events from last (re)programming + */ + aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA; + aiptek->eventCount = 0; + + return 0; +} + +/*********************************************************************** + * Sysfs functions. Sysfs prefers that individually-tunable parameters + * exist in their separate pseudo-files. Summary data that is immutable + * may exist in a singular file so long as you don't define a writeable + * interface. + */ + +/*********************************************************************** + * support the 'size' file -- display support + */ +static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "%dx%d\n", + aiptek->inputdev->absmax[ABS_X] + 1, + aiptek->inputdev->absmax[ABS_Y] + 1); +} + +/* These structs define the sysfs files, param #1 is the name of the + * file, param 2 is the file permissions, param 3 & 4 are to the + * output generator and input parser routines. Absence of a routine is + * permitted -- it only means can't either 'cat' the file, or send data + * to it. + */ +static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL); + +/*********************************************************************** + * support routines for the 'product_id' file + */ +static ssize_t show_tabletProductId(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "0x%04x\n", + aiptek->inputdev->id.product); +} + +static DEVICE_ATTR(product_id, S_IRUGO, show_tabletProductId, NULL); + +/*********************************************************************** + * support routines for the 'vendor_id' file + */ +static ssize_t show_tabletVendorId(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->inputdev->id.vendor); +} + +static DEVICE_ATTR(vendor_id, S_IRUGO, show_tabletVendorId, NULL); + +/*********************************************************************** + * support routines for the 'vendor' file + */ +static ssize_t show_tabletManufacturer(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + int retval; + + if (aiptek == NULL) + return 0; + + retval = snprintf(buf, PAGE_SIZE, "%s\n", aiptek->usbdev->manufacturer); + return retval; +} + +static DEVICE_ATTR(vendor, S_IRUGO, show_tabletManufacturer, NULL); + +/*********************************************************************** + * support routines for the 'product' file + */ +static ssize_t show_tabletProduct(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + int retval; + + if (aiptek == NULL) + return 0; + + retval = snprintf(buf, PAGE_SIZE, "%s\n", aiptek->usbdev->product); + return retval; +} + +static DEVICE_ATTR(product, S_IRUGO, show_tabletProduct, NULL); + +/*********************************************************************** + * support routines for the 'pointer_mode' file. Note that this file + * both displays current setting and allows reprogramming. + */ +static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + char *s; + + if (aiptek == NULL) + return 0; + + switch (aiptek->curSetting.pointerMode) { + case AIPTEK_POINTER_ONLY_STYLUS_MODE: + s = "stylus"; + break; + + case AIPTEK_POINTER_ONLY_MOUSE_MODE: + s = "mouse"; + break; + + case AIPTEK_POINTER_EITHER_MODE: + s = "either"; + break; + + default: + s = "unknown"; + break; + } + return snprintf(buf, PAGE_SIZE, "%s\n", s); +} + +static ssize_t +store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "stylus") == 0) { + aiptek->newSetting.pointerMode = + AIPTEK_POINTER_ONLY_STYLUS_MODE; + } else if (strcmp(buf, "mouse") == 0) { + aiptek->newSetting.pointerMode = AIPTEK_POINTER_ONLY_MOUSE_MODE; + } else if (strcmp(buf, "either") == 0) { + aiptek->newSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE; + } + return count; +} + +static DEVICE_ATTR(pointer_mode, + S_IRUGO | S_IWUGO, + show_tabletPointerMode, store_tabletPointerMode); + +/*********************************************************************** + * support routines for the 'coordinate_mode' file. Note that this file + * both displays current setting and allows reprogramming. + */ +static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + char *s; + + if (aiptek == NULL) + return 0; + + switch (aiptek->curSetting.coordinateMode) { + case AIPTEK_COORDINATE_ABSOLUTE_MODE: + s = "absolute"; + break; + + case AIPTEK_COORDINATE_RELATIVE_MODE: + s = "relative"; + break; + + default: + s = "unknown"; + break; + } + return snprintf(buf, PAGE_SIZE, "%s\n", s); +} + +static ssize_t +store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "absolute") == 0) { + aiptek->newSetting.pointerMode = + AIPTEK_COORDINATE_ABSOLUTE_MODE; + } else if (strcmp(buf, "relative") == 0) { + aiptek->newSetting.pointerMode = + AIPTEK_COORDINATE_RELATIVE_MODE; + } + return count; +} + +static DEVICE_ATTR(coordinate_mode, + S_IRUGO | S_IWUGO, + show_tabletCoordinateMode, store_tabletCoordinateMode); + +/*********************************************************************** + * support routines for the 'tool_mode' file. Note that this file + * both displays current setting and allows reprogramming. + */ +static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + char *s; + + if (aiptek == NULL) + return 0; + + switch (TOOL_BUTTON(aiptek->curSetting.toolMode)) { + case AIPTEK_TOOL_BUTTON_MOUSE_MODE: + s = "mouse"; + break; + + case AIPTEK_TOOL_BUTTON_ERASER_MODE: + s = "eraser"; + break; + + case AIPTEK_TOOL_BUTTON_PENCIL_MODE: + s = "pencil"; + break; + + case AIPTEK_TOOL_BUTTON_PEN_MODE: + s = "pen"; + break; + + case AIPTEK_TOOL_BUTTON_BRUSH_MODE: + s = "brush"; + break; + + case AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE: + s = "airbrush"; + break; + + case AIPTEK_TOOL_BUTTON_LENS_MODE: + s = "lens"; + break; + + default: + s = "unknown"; + break; + } + return snprintf(buf, PAGE_SIZE, "%s\n", s); +} + +static ssize_t +store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "mouse") == 0) { + aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_MOUSE_MODE; + } else if (strcmp(buf, "eraser") == 0) { + aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_ERASER_MODE; + } else if (strcmp(buf, "pencil") == 0) { + aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_PENCIL_MODE; + } else if (strcmp(buf, "pen") == 0) { + aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE; + } else if (strcmp(buf, "brush") == 0) { + aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_BRUSH_MODE; + } else if (strcmp(buf, "airbrush") == 0) { + aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE; + } else if (strcmp(buf, "lens") == 0) { + aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_LENS_MODE; + } + + return count; +} + +static DEVICE_ATTR(tool_mode, + S_IRUGO | S_IWUGO, + show_tabletToolMode, store_tabletToolMode); + +/*********************************************************************** + * support routines for the 'xtilt' file. Note that this file + * both displays current setting and allows reprogramming. + */ +static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) { + return snprintf(buf, PAGE_SIZE, "disable\n"); + } else { + return snprintf(buf, PAGE_SIZE, "%d\n", + aiptek->curSetting.xTilt); + } +} + +static ssize_t +store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + int x; + + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "disable") == 0) { + aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE; + } else { + x = (int)simple_strtol(buf, NULL, 10); + if (x >= AIPTEK_TILT_MIN && x <= AIPTEK_TILT_MAX) { + aiptek->newSetting.xTilt = x; + } + } + return count; +} + +static DEVICE_ATTR(xtilt, + S_IRUGO | S_IWUGO, show_tabletXtilt, store_tabletXtilt); + +/*********************************************************************** + * support routines for the 'ytilt' file. Note that this file + * both displays current setting and allows reprogramming. + */ +static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) { + return snprintf(buf, PAGE_SIZE, "disable\n"); + } else { + return snprintf(buf, PAGE_SIZE, "%d\n", + aiptek->curSetting.yTilt); + } +} + +static ssize_t +store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + int y; + + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "disable") == 0) { + aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE; + } else { + y = (int)simple_strtol(buf, NULL, 10); + if (y >= AIPTEK_TILT_MIN && y <= AIPTEK_TILT_MAX) { + aiptek->newSetting.yTilt = y; + } + } + return count; +} + +static DEVICE_ATTR(ytilt, + S_IRUGO | S_IWUGO, show_tabletYtilt, store_tabletYtilt); + +/*********************************************************************** + * support routines for the 'jitter' file. Note that this file + * both displays current setting and allows reprogramming. + */ +static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay); +} + +static ssize_t +store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + aiptek->newSetting.jitterDelay = (int)simple_strtol(buf, NULL, 10); + return count; +} + +static DEVICE_ATTR(jitter, + S_IRUGO | S_IWUGO, + show_tabletJitterDelay, store_tabletJitterDelay); + +/*********************************************************************** + * support routines for the 'delay' file. Note that this file + * both displays current setting and allows reprogramming. + */ +static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "%d\n", + aiptek->curSetting.programmableDelay); +} + +static ssize_t +store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + aiptek->newSetting.programmableDelay = (int)simple_strtol(buf, NULL, 10); + return count; +} + +static DEVICE_ATTR(delay, + S_IRUGO | S_IWUGO, + show_tabletProgrammableDelay, store_tabletProgrammableDelay); + +/*********************************************************************** + * support routines for the 'input_path' file. Note that this file + * only displays current setting. + */ +static ssize_t show_tabletInputDevice(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "/dev/input/%s\n", + aiptek->features.inputPath); +} + +static DEVICE_ATTR(input_path, S_IRUGO, show_tabletInputDevice, NULL); + +/*********************************************************************** + * support routines for the 'event_count' file. Note that this file + * only displays current setting. + */ +static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount); +} + +static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL); + +/*********************************************************************** + * support routines for the 'diagnostic' file. Note that this file + * only displays current setting. + */ +static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + char *retMsg; + + if (aiptek == NULL) + return 0; + + switch (aiptek->diagnostic) { + case AIPTEK_DIAGNOSTIC_NA: + retMsg = "no errors\n"; + break; + + case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE: + retMsg = "Error: receiving relative reports\n"; + break; + + case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE: + retMsg = "Error: receiving absolute reports\n"; + break; + + case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED: + if (aiptek->curSetting.pointerMode == + AIPTEK_POINTER_ONLY_MOUSE_MODE) { + retMsg = "Error: receiving stylus reports\n"; + } else { + retMsg = "Error: receiving mouse reports\n"; + } + break; + + default: + return 0; + } + return snprintf(buf, PAGE_SIZE, retMsg); +} + +static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL); + +/*********************************************************************** + * support routines for the 'stylus_upper' file. Note that this file + * both displays current setting and allows for setting changing. + */ +static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + char *s; + + if (aiptek == NULL) + return 0; + + switch (aiptek->curSetting.stylusButtonUpper) { + case AIPTEK_STYLUS_UPPER_BUTTON: + s = "upper"; + break; + + case AIPTEK_STYLUS_LOWER_BUTTON: + s = "lower"; + break; + + default: + s = "unknown"; + break; + } + return snprintf(buf, PAGE_SIZE, "%s\n", s); +} + +static ssize_t +store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "upper") == 0) { + aiptek->newSetting.stylusButtonUpper = + AIPTEK_STYLUS_UPPER_BUTTON; + } else if (strcmp(buf, "lower") == 0) { + aiptek->newSetting.stylusButtonUpper = + AIPTEK_STYLUS_LOWER_BUTTON; + } + return count; +} + +static DEVICE_ATTR(stylus_upper, + S_IRUGO | S_IWUGO, + show_tabletStylusUpper, store_tabletStylusUpper); + +/*********************************************************************** + * support routines for the 'stylus_lower' file. Note that this file + * both displays current setting and allows for setting changing. + */ +static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + char *s; + + if (aiptek == NULL) + return 0; + + switch (aiptek->curSetting.stylusButtonLower) { + case AIPTEK_STYLUS_UPPER_BUTTON: + s = "upper"; + break; + + case AIPTEK_STYLUS_LOWER_BUTTON: + s = "lower"; + break; + + default: + s = "unknown"; + break; + } + return snprintf(buf, PAGE_SIZE, "%s\n", s); +} + +static ssize_t +store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "upper") == 0) { + aiptek->newSetting.stylusButtonLower = + AIPTEK_STYLUS_UPPER_BUTTON; + } else if (strcmp(buf, "lower") == 0) { + aiptek->newSetting.stylusButtonLower = + AIPTEK_STYLUS_LOWER_BUTTON; + } + return count; +} + +static DEVICE_ATTR(stylus_lower, + S_IRUGO | S_IWUGO, + show_tabletStylusLower, store_tabletStylusLower); + +/*********************************************************************** + * support routines for the 'mouse_left' file. Note that this file + * both displays current setting and allows for setting changing. + */ +static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + char *s; + + if (aiptek == NULL) + return 0; + + switch (aiptek->curSetting.mouseButtonLeft) { + case AIPTEK_MOUSE_LEFT_BUTTON: + s = "left"; + break; + + case AIPTEK_MOUSE_MIDDLE_BUTTON: + s = "middle"; + break; + + case AIPTEK_MOUSE_RIGHT_BUTTON: + s = "right"; + break; + + default: + s = "unknown"; + break; + } + return snprintf(buf, PAGE_SIZE, "%s\n", s); +} + +static ssize_t +store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "left") == 0) { + aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON; + } else if (strcmp(buf, "middle") == 0) { + aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_MIDDLE_BUTTON; + } else if (strcmp(buf, "right") == 0) { + aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_RIGHT_BUTTON; + } + return count; +} + +static DEVICE_ATTR(mouse_left, + S_IRUGO | S_IWUGO, + show_tabletMouseLeft, store_tabletMouseLeft); + +/*********************************************************************** + * support routines for the 'mouse_middle' file. Note that this file + * both displays current setting and allows for setting changing. + */ +static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + char *s; + + if (aiptek == NULL) + return 0; + + switch (aiptek->curSetting.mouseButtonMiddle) { + case AIPTEK_MOUSE_LEFT_BUTTON: + s = "left"; + break; + + case AIPTEK_MOUSE_MIDDLE_BUTTON: + s = "middle"; + break; + + case AIPTEK_MOUSE_RIGHT_BUTTON: + s = "right"; + break; + + default: + s = "unknown"; + break; + } + return snprintf(buf, PAGE_SIZE, "%s\n", s); +} + +static ssize_t +store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "left") == 0) { + aiptek->newSetting.mouseButtonMiddle = AIPTEK_MOUSE_LEFT_BUTTON; + } else if (strcmp(buf, "middle") == 0) { + aiptek->newSetting.mouseButtonMiddle = + AIPTEK_MOUSE_MIDDLE_BUTTON; + } else if (strcmp(buf, "right") == 0) { + aiptek->newSetting.mouseButtonMiddle = + AIPTEK_MOUSE_RIGHT_BUTTON; + } + return count; +} + +static DEVICE_ATTR(mouse_middle, + S_IRUGO | S_IWUGO, + show_tabletMouseMiddle, store_tabletMouseMiddle); + +/*********************************************************************** + * support routines for the 'mouse_right' file. Note that this file + * both displays current setting and allows for setting changing. + */ +static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + char *s; + + if (aiptek == NULL) + return 0; + + switch (aiptek->curSetting.mouseButtonRight) { + case AIPTEK_MOUSE_LEFT_BUTTON: + s = "left"; + break; + + case AIPTEK_MOUSE_MIDDLE_BUTTON: + s = "middle"; + break; + + case AIPTEK_MOUSE_RIGHT_BUTTON: + s = "right"; + break; + + default: + s = "unknown"; + break; + } + return snprintf(buf, PAGE_SIZE, "%s\n", s); +} + +static ssize_t +store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + if (strcmp(buf, "left") == 0) { + aiptek->newSetting.mouseButtonRight = AIPTEK_MOUSE_LEFT_BUTTON; + } else if (strcmp(buf, "middle") == 0) { + aiptek->newSetting.mouseButtonRight = + AIPTEK_MOUSE_MIDDLE_BUTTON; + } else if (strcmp(buf, "right") == 0) { + aiptek->newSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON; + } + return count; +} + +static DEVICE_ATTR(mouse_right, + S_IRUGO | S_IWUGO, + show_tabletMouseRight, store_tabletMouseRight); + +/*********************************************************************** + * support routines for the 'wheel' file. Note that this file + * both displays current setting and allows for setting changing. + */ +static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) { + return snprintf(buf, PAGE_SIZE, "disable\n"); + } else { + return snprintf(buf, PAGE_SIZE, "%d\n", + aiptek->curSetting.wheel); + } +} + +static ssize_t +store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + aiptek->newSetting.wheel = (int)simple_strtol(buf, NULL, 10); + return count; +} + +static DEVICE_ATTR(wheel, + S_IRUGO | S_IWUGO, show_tabletWheel, store_tabletWheel); + +/*********************************************************************** + * support routines for the 'execute' file. Note that this file + * both displays current setting and allows for setting changing. + */ +static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + /* There is nothing useful to display, so a one-line manual + * is in order... + */ + return snprintf(buf, PAGE_SIZE, + "Write anything to this file to program your tablet.\n"); +} + +static ssize_t +store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + /* We do not care what you write to this file. Merely the action + * of writing to this file triggers a tablet reprogramming. + */ + memcpy(&aiptek->curSetting, &aiptek->newSetting, + sizeof(struct aiptek_settings)); + + if (aiptek_program_tablet(aiptek) < 0) + return -EIO; + + return count; +} + +static DEVICE_ATTR(execute, + S_IRUGO | S_IWUGO, show_tabletExecute, store_tabletExecute); + +/*********************************************************************** + * support routines for the 'odm_code' file. Note that this file + * only displays current setting. + */ +static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode); +} + +static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL); + +/*********************************************************************** + * support routines for the 'model_code' file. Note that this file + * only displays current setting. + */ +static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode); +} + +static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL); + +/*********************************************************************** + * support routines for the 'firmware_code' file. Note that this file + * only displays current setting. + */ +static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct aiptek *aiptek = dev_get_drvdata(dev); + + if (aiptek == NULL) + return 0; + + return snprintf(buf, PAGE_SIZE, "%04x\n", + aiptek->features.firmwareCode); +} + +static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL); + +/*********************************************************************** + * This routine removes all existing sysfs files managed by this device + * driver. + */ +static void aiptek_delete_files(struct device *dev) +{ + device_remove_file(dev, &dev_attr_size); + device_remove_file(dev, &dev_attr_product_id); + device_remove_file(dev, &dev_attr_vendor_id); + device_remove_file(dev, &dev_attr_vendor); + device_remove_file(dev, &dev_attr_product); + device_remove_file(dev, &dev_attr_pointer_mode); + device_remove_file(dev, &dev_attr_coordinate_mode); + device_remove_file(dev, &dev_attr_tool_mode); + device_remove_file(dev, &dev_attr_xtilt); + device_remove_file(dev, &dev_attr_ytilt); + device_remove_file(dev, &dev_attr_jitter); + device_remove_file(dev, &dev_attr_delay); + device_remove_file(dev, &dev_attr_input_path); + device_remove_file(dev, &dev_attr_event_count); + device_remove_file(dev, &dev_attr_diagnostic); + device_remove_file(dev, &dev_attr_odm_code); + device_remove_file(dev, &dev_attr_model_code); + device_remove_file(dev, &dev_attr_firmware_code); + device_remove_file(dev, &dev_attr_stylus_lower); + device_remove_file(dev, &dev_attr_stylus_upper); + device_remove_file(dev, &dev_attr_mouse_left); + device_remove_file(dev, &dev_attr_mouse_middle); + device_remove_file(dev, &dev_attr_mouse_right); + device_remove_file(dev, &dev_attr_wheel); + device_remove_file(dev, &dev_attr_execute); +} + +/*********************************************************************** + * This routine creates the sysfs files managed by this device + * driver. + */ +static int aiptek_add_files(struct device *dev) +{ + int ret; + + if ((ret = device_create_file(dev, &dev_attr_size)) || + (ret = device_create_file(dev, &dev_attr_product_id)) || + (ret = device_create_file(dev, &dev_attr_vendor_id)) || + (ret = device_create_file(dev, &dev_attr_vendor)) || + (ret = device_create_file(dev, &dev_attr_product)) || + (ret = device_create_file(dev, &dev_attr_pointer_mode)) || + (ret = device_create_file(dev, &dev_attr_coordinate_mode)) || + (ret = device_create_file(dev, &dev_attr_tool_mode)) || + (ret = device_create_file(dev, &dev_attr_xtilt)) || + (ret = device_create_file(dev, &dev_attr_ytilt)) || + (ret = device_create_file(dev, &dev_attr_jitter)) || + (ret = device_create_file(dev, &dev_attr_delay)) || + (ret = device_create_file(dev, &dev_attr_input_path)) || + (ret = device_create_file(dev, &dev_attr_event_count)) || + (ret = device_create_file(dev, &dev_attr_diagnostic)) || + (ret = device_create_file(dev, &dev_attr_odm_code)) || + (ret = device_create_file(dev, &dev_attr_model_code)) || + (ret = device_create_file(dev, &dev_attr_firmware_code)) || + (ret = device_create_file(dev, &dev_attr_stylus_lower)) || + (ret = device_create_file(dev, &dev_attr_stylus_upper)) || + (ret = device_create_file(dev, &dev_attr_mouse_left)) || + (ret = device_create_file(dev, &dev_attr_mouse_middle)) || + (ret = device_create_file(dev, &dev_attr_mouse_right)) || + (ret = device_create_file(dev, &dev_attr_wheel)) || + (ret = device_create_file(dev, &dev_attr_execute))) { + err("aiptek: killing own sysfs device files\n"); + aiptek_delete_files(dev); + } + return ret; +} + +/*********************************************************************** + * This routine is called when a tablet has been identified. It basically + * sets up the tablet and the driver's internal structures. + */ +static int +aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct usb_device *usbdev = interface_to_usbdev(intf); + struct usb_endpoint_descriptor *endpoint; + struct aiptek *aiptek; + struct input_dev *inputdev; + struct input_handle *inputhandle; + struct list_head *node, *next; + int i; + int speeds[] = { 0, + AIPTEK_PROGRAMMABLE_DELAY_50, + AIPTEK_PROGRAMMABLE_DELAY_400, + AIPTEK_PROGRAMMABLE_DELAY_25, + AIPTEK_PROGRAMMABLE_DELAY_100, + AIPTEK_PROGRAMMABLE_DELAY_200, + AIPTEK_PROGRAMMABLE_DELAY_300 + }; + int err = -ENOMEM; + + /* programmableDelay is where the command-line specified + * delay is kept. We make it the first element of speeds[], + * so therefore, your override speed is tried first, then the + * remainder. Note that the default value of 400ms will be tried + * if you do not specify any command line parameter. + */ + speeds[0] = programmableDelay; + + aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL); + inputdev = input_allocate_device(); + if (!aiptek || !inputdev) + goto fail1; + + aiptek->data = usb_buffer_alloc(usbdev, AIPTEK_PACKET_LENGTH, + GFP_ATOMIC, &aiptek->data_dma); + if (!aiptek->data) + goto fail1; + + aiptek->urb = usb_alloc_urb(0, GFP_KERNEL); + if (!aiptek->urb) + goto fail2; + + aiptek->inputdev = inputdev; + aiptek->usbdev = usbdev; + aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber; + aiptek->inDelay = 0; + aiptek->endDelay = 0; + aiptek->previousJitterable = 0; + + /* Set up the curSettings struct. Said struct contains the current + * programmable parameters. The newSetting struct contains changes + * the user makes to the settings via the sysfs interface. Those + * changes are not "committed" to curSettings until the user + * writes to the sysfs/.../execute file. + */ + aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE; + aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE; + aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE; + aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE; + aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE; + aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON; + aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON; + aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON; + aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON; + aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON; + aiptek->curSetting.jitterDelay = jitterDelay; + aiptek->curSetting.programmableDelay = programmableDelay; + + /* Both structs should have equivalent settings + */ + aiptek->newSetting = aiptek->curSetting; + + /* Determine the usb devices' physical path. + * Asketh not why we always pretend we're using "../input0", + * but I suspect this will have to be refactored one + * day if a single USB device can be a keyboard & a mouse + * & a tablet, and the inputX number actually will tell + * us something... + */ + usb_make_path(usbdev, aiptek->features.usbPath, + sizeof(aiptek->features.usbPath)); + strlcat(aiptek->features.usbPath, "/input0", + sizeof(aiptek->features.usbPath)); + + /* Set up client data, pointers to open and close routines + * for the input device. + */ + inputdev->name = "Aiptek"; + inputdev->phys = aiptek->features.usbPath; + usb_to_input_id(usbdev, &inputdev->id); + inputdev->dev.parent = &intf->dev; + + input_set_drvdata(inputdev, aiptek); + + inputdev->open = aiptek_open; + inputdev->close = aiptek_close; + + /* Now program the capacities of the tablet, in terms of being + * an input device. + */ + inputdev->evbit[0] |= BIT(EV_KEY) + | BIT(EV_ABS) + | BIT(EV_REL) + | BIT(EV_MSC); + + inputdev->absbit[0] |= BIT(ABS_MISC); + + inputdev->relbit[0] |= + (BIT(REL_X) | BIT(REL_Y) | BIT(REL_WHEEL) | BIT(REL_MISC)); + + inputdev->keybit[LONG(BTN_LEFT)] |= + (BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE)); + + inputdev->keybit[LONG(BTN_DIGI)] |= + (BIT(BTN_TOOL_PEN) | + BIT(BTN_TOOL_RUBBER) | + BIT(BTN_TOOL_PENCIL) | + BIT(BTN_TOOL_AIRBRUSH) | + BIT(BTN_TOOL_BRUSH) | + BIT(BTN_TOOL_MOUSE) | + BIT(BTN_TOOL_LENS) | + BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2)); + + inputdev->mscbit[0] = BIT(MSC_SERIAL); + + /* Programming the tablet macro keys needs to be done with a for loop + * as the keycodes are discontiguous. + */ + for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i) + set_bit(macroKeyEvents[i], inputdev->keybit); + + /* + * Program the input device coordinate capacities. We do not yet + * know what maximum X, Y, and Z values are, so we're putting fake + * values in. Later, we'll ask the tablet to put in the correct + * values. + */ + input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0); + input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0); + input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0); + input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0); + input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0); + input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0); + + endpoint = &intf->altsetting[0].endpoint[0].desc; + + /* Go set up our URB, which is called when the tablet receives + * input. + */ + usb_fill_int_urb(aiptek->urb, + aiptek->usbdev, + usb_rcvintpipe(aiptek->usbdev, + endpoint->bEndpointAddress), + aiptek->data, 8, aiptek_irq, aiptek, + endpoint->bInterval); + + aiptek->urb->transfer_dma = aiptek->data_dma; + aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + /* Program the tablet. This sets the tablet up in the mode + * specified in newSetting, and also queries the tablet's + * physical capacities. + * + * Sanity check: if a tablet doesn't like the slow programmatic + * delay, we often get sizes of 0x0. Let's use that as an indicator + * to try faster delays, up to 25 ms. If that logic fails, well, you'll + * have to explain to us how your tablet thinks it's 0x0, and yet that's + * not an error :-) + */ + + for (i = 0; i < ARRAY_SIZE(speeds); ++i) { + aiptek->curSetting.programmableDelay = speeds[i]; + (void)aiptek_program_tablet(aiptek); + if (aiptek->inputdev->absmax[ABS_X] > 0) { + info("input: Aiptek using %d ms programming speed\n", + aiptek->curSetting.programmableDelay); + break; + } + } + + /* Register the tablet as an Input Device + */ + err = input_register_device(aiptek->inputdev); + if (err) + goto fail2; + + /* We now will look for the evdev device which is mapped to + * the tablet. The partial name is kept in the link list of + * input_handles associated with this input device. + * What identifies an evdev input_handler is that it begins + * with 'event', continues with a digit, and that in turn + * is mapped to input/eventN. + */ + list_for_each_safe(node, next, &inputdev->h_list) { + inputhandle = to_handle(node); + if (strncmp(inputhandle->name, "event", 5) == 0) { + strcpy(aiptek->features.inputPath, inputhandle->name); + break; + } + } + + /* Associate this driver's struct with the usb interface. + */ + usb_set_intfdata(intf, aiptek); + + /* Set up the sysfs files + */ + aiptek_add_files(&intf->dev); + + /* Make sure the evdev module is loaded. Assuming evdev IS a module :-) + */ + if (request_module("evdev") != 0) + info("aiptek: error loading 'evdev' module"); + + return 0; + + fail2: usb_buffer_free(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data, + aiptek->data_dma); + fail1: input_free_device(inputdev); + kfree(aiptek); + return err; +} + +/*********************************************************************** + * Deal with tablet disconnecting from the system. + */ +static void aiptek_disconnect(struct usb_interface *intf) +{ + struct aiptek *aiptek = usb_get_intfdata(intf); + + /* Disassociate driver's struct with usb interface + */ + usb_set_intfdata(intf, NULL); + if (aiptek != NULL) { + /* Free & unhook everything from the system. + */ + usb_kill_urb(aiptek->urb); + input_unregister_device(aiptek->inputdev); + aiptek_delete_files(&intf->dev); + usb_free_urb(aiptek->urb); + usb_buffer_free(interface_to_usbdev(intf), + AIPTEK_PACKET_LENGTH, + aiptek->data, aiptek->data_dma); + kfree(aiptek); + } +} + +static struct usb_driver aiptek_driver = { + .name = "aiptek", + .probe = aiptek_probe, + .disconnect = aiptek_disconnect, + .id_table = aiptek_ids, +}; + +static int __init aiptek_init(void) +{ + int result = usb_register(&aiptek_driver); + if (result == 0) { + info(DRIVER_VERSION ": " DRIVER_AUTHOR); + info(DRIVER_DESC); + } + return result; +} + +static void __exit aiptek_exit(void) +{ + usb_deregister(&aiptek_driver); +} + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +module_param(programmableDelay, int, 0); +MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming"); +module_param(jitterDelay, int, 0); +MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay"); + +module_init(aiptek_init); +module_exit(aiptek_exit); |
