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 00000000000..cc0a498763d --- /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 'prod |