// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Native support for the Aiptek HyperPen USB Tablets
* ( 4000 U / 5000 U / 6000 U / 8000 U / 12000 U )
*
* 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 6000 U - 12000 U , 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.
*/
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/usb/input.h>
#include <linux/uaccess.h>
#include <linux/unaligned.h>
/*
* 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 1
* 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 1
* 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
* 0 x10 / 0 x00 SwitchToMouse 0
* 0 x10 / 0 x01 SwitchToTablet 0
* 0 x18 / 0 x04 SetResolution 0
* 0 x12 / 0 xFF AutoGainOn 0
* 0 x17 / 0 x00 FilterOn 0
* 0 x01 / 0 x00 GetXExtension 2 MaxX
* 0 x01 / 0 x01 GetYExtension 2 MaxY
* 0 x02 / 0 x00 GetModelCode 2 ModelCode = LOBYTE
* 0 x03 / 0 x00 GetODMCode 2 ODMCode
* 0 x08 / 0 x00 GetPressureLevels 2 = 512
* 0 x04 / 0 x00 GetFirmwareVersion 2 Firmware Version
* 0 x11 / 0 x02 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 0 x08ca
#define USB_VENDOR_ID_KYE 0 x0458
#define USB_REQ_GET_REPORT 0 x01
#define USB_REQ_SET_REPORT 0 x09
/* 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 the tool button has changed ,
* the tools get reset .
*/
/* toolMode codes
*/
#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 0 x04
#define AIPTEK_MOUSE_RIGHT_BUTTON 0 x08
#define AIPTEK_MOUSE_MIDDLE_BUTTON 0 x10
/* Stylus button programming
*/
#define AIPTEK_STYLUS_LOWER_BUTTON 0 x08
#define AIPTEK_STYLUS_UPPER_BUTTON 0 x10
/* 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 0 x10
#define AIPTEK_REPORT_TOOL_STYLUS 0 x20
#define AIPTEK_REPORT_TOOL_MOUSE 0 x40
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 */
};
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_interface *intf; /* usb interface 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 */
int lastMacro; /* macro key to reset */
int previousToolMode; /* pen, pencil, brush, etc. tool */
unsigned char *data; /* incoming packet data */
};
static const int eventTypes[] = {
EV_KEY, EV_ABS, EV_REL, EV_MSC,
};
static const int absEvents[] = {
ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y,
ABS_WHEEL, ABS_MISC,
};
static const int relEvents[] = {
REL_X, REL_Y, REL_WHEEL,
};
static const int buttonEvents[] = {
BTN_LEFT, BTN_RIGHT, BTN_MIDDLE,
BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_PENCIL, BTN_TOOL_AIRBRUSH,
BTN_TOOL_BRUSH, BTN_TOOL_MOUSE, BTN_TOOL_LENS, BTN_TOUCH,
BTN_STYLUS, BTN_STYLUS2,
};
/*
* 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
};
/***********************************************************************
* Map values to strings and back . Every map should have the following
* as its last element : { NULL , AIPTEK_INVALID_VALUE } .
*/
#define AIPTEK_INVALID_VALUE -1
struct aiptek_map {
const char *string;
int value;
};
static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t count)
{
const struct aiptek_map *p;
if (str[count - 1 ] == '\n' )
count--;
for (p = map; p->string; p++)
if (!strncmp(str, p->string, count))
return p->value;
return AIPTEK_INVALID_VALUE;
}
static const char *map_val_to_str(const struct aiptek_map *map, int val)
{
const struct aiptek_map *p;
for (p = map; p->value != AIPTEK_INVALID_VALUE; p++)
if (val == p->value)
return p->string;
return "unknown" ;
}
/***********************************************************************
* 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 .
* Update : REL_MISC proved not to be such a good idea . With REL_MISC you
* get an event transmitted each time . ABS_MISC works better , since it
* can be set and re - set . Thus , only using ABS_MISC from now on .
*
* 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;
struct usb_interface *intf = aiptek->intf;
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 */
dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n" ,
__func__, urb->status);
return ;
default :
dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n" ,
__func__, 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 = (signed char ) data[2 ];
y = (signed char ) 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[1 ] & 0 x07;
left = (data[1 ] & aiptek->curSetting.mouseButtonLeft >> 2 ) != 0 ? 1 : 0 ;
right = (data[1 ] & aiptek->curSetting.mouseButtonRight >> 2 ) != 0 ? 1 : 0 ;
middle = (data[1 ] & aiptek->curSetting.mouseButtonMiddle >> 2 ) != 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_abs(inputdev, ABS_MISC,
1 | AIPTEK_REPORT_TOOL_UNKNOWN);
input_report_rel(inputdev, REL_X, x);
input_report_rel(inputdev, REL_Y, y);
/* 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;
}
if (aiptek->lastMacro != -1 ) {
input_report_key(inputdev,
macroKeyEvents[aiptek->lastMacro], 0 );
aiptek->lastMacro = -1 ;
}
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 = get_unaligned_le16(data + 1 );
y = get_unaligned_le16(data + 3 );
z = get_unaligned_le16(data + 6 );
dv = (data[5 ] & 0 x01) != 0 ? 1 : 0 ;
p = (data[5 ] & 0 x02) != 0 ? 1 : 0 ;
tip = (data[5 ] & 0 x04) != 0 ? 1 : 0 ;
/* Use jitterable to re-arrange button masks
*/
jitterable = data[5 ] & 0 x18;
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 the selected tool changed, reset the old
* tool key , and set the new one .
*/
if (aiptek->previousToolMode !=
aiptek->curSetting.toolMode) {
input_report_key(inputdev,
aiptek->previousToolMode, 0 );
input_report_key(inputdev,
aiptek->curSetting.toolMode,
1 );
aiptek->previousToolMode =
aiptek->curSetting.toolMode;
}
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);
if (aiptek->lastMacro != -1 ) {
input_report_key(inputdev,
macroKeyEvents[aiptek->lastMacro], 0 );
aiptek->lastMacro = -1 ;
}
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 = get_unaligned_le16(data + 1 );
y = get_unaligned_le16(data + 3 );
jitterable = data[5 ] & 0 x1c;
dv = (data[5 ] & 0 x01) != 0 ? 1 : 0 ;
p = (data[5 ] & 0 x02) != 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 the selected tool changed, reset the old
* tool key , and set the new one .
*/
if (aiptek->previousToolMode !=
aiptek->curSetting.toolMode) {
input_report_key(inputdev,
aiptek->previousToolMode, 0 );
input_report_key(inputdev,
aiptek->curSetting.toolMode,
1 );
aiptek->previousToolMode =
aiptek->curSetting.toolMode;
}
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_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_MOUSE);
if (aiptek->lastMacro != -1 ) {
input_report_key(inputdev,
macroKeyEvents[aiptek->lastMacro], 0 );
aiptek->lastMacro = -1 ;
}
input_sync(inputdev);
}
}
}
/* Report 4s come from the macro keys when pressed by stylus
*/
else if (data[0 ] == 4 ) {
jitterable = data[1 ] & 0 x18;
dv = (data[1 ] & 0 x01) != 0 ? 1 : 0 ;
p = (data[1 ] & 0 x02) != 0 ? 1 : 0 ;
tip = (data[1 ] & 0 x04) != 0 ? 1 : 0 ;
bs = (data[1 ] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0 ;
pck = (data[1 ] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0 ;
macro = dv && p && tip && !(data[3 ] & 1 ) ? (data[3 ] >> 1 ) : -1 ;
z = get_unaligned_le16(data + 4 );
if (dv) {
/* If the selected tool changed, reset the old
* tool key , and set the new one .
*/
if (aiptek->previousToolMode !=
aiptek->curSetting.toolMode) {
input_report_key(inputdev,
aiptek->previousToolMode, 0 );
input_report_key(inputdev,
aiptek->curSetting.toolMode,
1 );
aiptek->previousToolMode =
aiptek->curSetting.toolMode;
}
}
if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0 );
aiptek->lastMacro = -1 ;
}
if (macro != -1 && macro != aiptek->lastMacro) {
input_report_key(inputdev, macroKeyEvents[macro], 1 );
aiptek->lastMacro = macro;
}
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 ] & 0 x1c;
dv = (data[1 ] & 0 x01) != 0 ? 1 : 0 ;
p = (data[1 ] & 0 x02) != 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 = dv && p && left && !(data[3 ] & 1 ) ? (data[3 ] >> 1 ) : 0 ;
if (dv) {
/* If the selected tool changed, reset the old
* tool key , and set the new one .
*/
if (aiptek->previousToolMode !=
aiptek->curSetting.toolMode) {
input_report_key(inputdev,
aiptek->previousToolMode, 0 );
input_report_key(inputdev,
aiptek->curSetting.toolMode, 1 );
aiptek->previousToolMode = aiptek->curSetting.toolMode;
}
}
if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0 );
aiptek->lastMacro = -1 ;
}
if (macro != -1 && macro != aiptek->lastMacro) {
input_report_key(inputdev, macroKeyEvents[macro], 1 );
aiptek->lastMacro = macro;
}
input_report_abs(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 = 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 the selected tool changed, reset the old
tool key , and set the new one .
*/
if (aiptek->previousToolMode !=
aiptek->curSetting.toolMode) {
input_report_key(inputdev,
aiptek->previousToolMode, 0 );
input_report_key(inputdev,
aiptek->curSetting.toolMode,
1 );
aiptek->previousToolMode =
aiptek->curSetting.toolMode;
}
input_report_key(inputdev, macroKeyEvents[macro], 1 );
input_report_abs(inputdev, ABS_MISC,
1 | AIPTEK_REPORT_TOOL_UNKNOWN);
input_sync(inputdev);
} else {
dev_dbg(&intf->dev, "Unknown report %d\n" , 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 ) {
dev_err(&intf->dev,
"%s - usb_submit_urb failed with result %d\n" ,
__func__, 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, 0 x01)},
{USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0 x10)},
{USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0 x20)},
{USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0 x21)},
{USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0 x22)},
{USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0 x23)},
{USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0 x24)},
{USB_DEVICE(USB_VENDOR_ID_KYE, 0 x5003)},
{}
};
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 = interface_to_usbdev(aiptek->intf);
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)
{
struct usb_device *udev = interface_to_usbdev(aiptek->intf);
return usb_control_msg(udev,
usb_sndctrlpipe(udev, 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)
{
struct usb_device *udev = interface_to_usbdev(aiptek->intf);
return usb_control_msg(udev,
usb_rcvctrlpipe(udev, 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) {
dev_dbg(&aiptek->intf->dev,
"aiptek_program: failed, tried to send: 0x%02x 0x%02x\n" ,
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 (aiptek_get_report(aiptek, 3 , 2 , buf, sizeof_buf) != sizeof_buf) {
dev_dbg(&aiptek->intf->dev,
"aiptek_query failed: returned 0x%02x 0x%02x 0x%02x\n" ,
buf[0 ], buf[1 ], buf[2 ]);
ret = -EIO;
} else {
ret = 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, 0 x18, 0 x04)) < 0 )
return ret;
/* Query getModelCode */
if ((ret = aiptek_query(aiptek, 0 x02, 0 x00)) < 0 )
return ret;
aiptek->features.modelCode = ret & 0 xff;
/* Query getODMCode */
if ((ret = aiptek_query(aiptek, 0 x03, 0 x00)) < 0 )
return ret;
aiptek->features.odmCode = ret;
/* Query getFirmwareCode */
if ((ret = aiptek_query(aiptek, 0 x04, 0 x00)) < 0 )
return ret;
aiptek->features.firmwareCode = ret;
/* Query getXextension */
if ((ret = aiptek_query(aiptek, 0 x01, 0 x00)) < 0 )
return ret;
input_set_abs_params(aiptek->inputdev, ABS_X, 0 , ret - 1 , 0 , 0 );
/* Query getYextension */
if ((ret = aiptek_query(aiptek, 0 x01, 0 x01)) < 0 )
return ret;
input_set_abs_params(aiptek->inputdev, ABS_Y, 0 , ret - 1 , 0 , 0 );
/* Query getPressureLevels */
if ((ret = aiptek_query(aiptek, 0 x08, 0 x00)) < 0 )
return ret;
input_set_abs_params(aiptek->inputdev, ABS_PRESSURE, 0 , ret - 1 , 0 , 0 );
/* 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, 0 x10, 0 x01)) < 0 ) {
return ret;
}
} else {
/* Execute switchToMouse */
if ((ret = aiptek_command(aiptek, 0 x10, 0 x00)) < 0 ) {
return ret;
}
}
/* Enable the macro keys */
if ((ret = aiptek_command(aiptek, 0 x11, 0 x02)) < 0 )
return ret;
#if 0
/* Execute FilterOn */
if ((ret = aiptek_command(aiptek, 0 x17, 0 x00)) < 0 )
return ret;
#endif
/* Execute AutoGainOn */
if ((ret = aiptek_command(aiptek, 0 x12, 0 xff)) < 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);
return sysfs_emit(buf, "%dx%d\n" ,
input_abs_get_max(aiptek->inputdev, ABS_X) + 1 ,
input_abs_get_max(aiptek->inputdev, 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 ' pointer_mode ' file . Note that this file
* both displays current setting and allows reprogramming .
*/
static struct aiptek_map pointer_mode_map[] = {
{ "stylus" , AIPTEK_POINTER_ONLY_STYLUS_MODE },
{ "mouse" , AIPTEK_POINTER_ONLY_MOUSE_MODE },
{ "either" , AIPTEK_POINTER_EITHER_MODE },
{ NULL, AIPTEK_INVALID_VALUE }
};
static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return sysfs_emit(buf, "%s\n" , map_val_to_str(pointer_mode_map,
aiptek->curSetting.pointerMode));
}
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);
int new_mode = map_str_to_val(pointer_mode_map, buf, count);
if (new_mode == AIPTEK_INVALID_VALUE)
return -EINVAL;
aiptek->newSetting.pointerMode = new_mode;
return count;
}
static DEVICE_ATTR(pointer_mode,
S_IRUGO | S_IWUSR,
show_tabletPointerMode, store_tabletPointerMode);
/***********************************************************************
* support routines for the ' coordinate_mode ' file . Note that this file
* both displays current setting and allows reprogramming .
*/
static struct aiptek_map coordinate_mode_map[] = {
{ "absolute" , AIPTEK_COORDINATE_ABSOLUTE_MODE },
{ "relative" , AIPTEK_COORDINATE_RELATIVE_MODE },
{ NULL, AIPTEK_INVALID_VALUE }
};
static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return sysfs_emit(buf, "%s\n" , map_val_to_str(coordinate_mode_map,
aiptek->curSetting.coordinateMode));
}
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);
int new_mode = map_str_to_val(coordinate_mode_map, buf, count);
if (new_mode == AIPTEK_INVALID_VALUE)
return -EINVAL;
aiptek->newSetting.coordinateMode = new_mode;
return count;
}
static DEVICE_ATTR(coordinate_mode,
S_IRUGO | S_IWUSR,
show_tabletCoordinateMode, store_tabletCoordinateMode);
/***********************************************************************
* support routines for the ' tool_mode ' file . Note that this file
* both displays current setting and allows reprogramming .
*/
static struct aiptek_map tool_mode_map[] = {
{ "mouse" , AIPTEK_TOOL_BUTTON_MOUSE_MODE },
{ "eraser" , AIPTEK_TOOL_BUTTON_ERASER_MODE },
{ "pencil" , AIPTEK_TOOL_BUTTON_PENCIL_MODE },
{ "pen" , AIPTEK_TOOL_BUTTON_PEN_MODE },
{ "brush" , AIPTEK_TOOL_BUTTON_BRUSH_MODE },
{ "airbrush" , AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE },
{ "lens" , AIPTEK_TOOL_BUTTON_LENS_MODE },
{ NULL, AIPTEK_INVALID_VALUE }
};
static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return sysfs_emit(buf, "%s\n" , map_val_to_str(tool_mode_map,
aiptek->curSetting.toolMode));
}
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);
int new_mode = map_str_to_val(tool_mode_map, buf, count);
if (new_mode == AIPTEK_INVALID_VALUE)
return -EINVAL;
aiptek->newSetting.toolMode = new_mode;
return count;
}
static DEVICE_ATTR(tool_mode,
S_IRUGO | S_IWUSR,
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->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
return sysfs_emit(buf, "disable\n" );
} else {
return sysfs_emit(buf, "%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 (kstrtoint(buf, 10 , &x)) {
size_t len = buf[count - 1 ] == '\n' ? count - 1 : count;
if (strncmp(buf, "disable" , len))
return -EINVAL;
aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
} else {
if (x < AIPTEK_TILT_MIN || x > AIPTEK_TILT_MAX)
return -EINVAL;
aiptek->newSetting.xTilt = x;
}
return count;
}
static DEVICE_ATTR(xtilt,
S_IRUGO | S_IWUSR, 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->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
return sysfs_emit(buf, "disable\n" );
} else {
return sysfs_emit(buf, "%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 (kstrtoint(buf, 10 , &y)) {
size_t len = buf[count - 1 ] == '\n' ? count - 1 : count;
if (strncmp(buf, "disable" , len))
return -EINVAL;
aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
} else {
if (y < AIPTEK_TILT_MIN || y > AIPTEK_TILT_MAX)
return -EINVAL;
aiptek->newSetting.yTilt = y;
}
return count;
}
static DEVICE_ATTR(ytilt,
S_IRUGO | S_IWUSR, 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);
return sysfs_emit(buf, "%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);
int err, j;
err = kstrtoint(buf, 10 , &j);
if (err)
return err;
aiptek->newSetting.jitterDelay = j;
return count;
}
static DEVICE_ATTR(jitter,
S_IRUGO | S_IWUSR,
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);
return sysfs_emit(buf, "%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);
int err, d;
err = kstrtoint(buf, 10 , &d);
if (err)
return err;
aiptek->newSetting.programmableDelay = d;
return count;
}
static DEVICE_ATTR(delay,
S_IRUGO | S_IWUSR,
show_tabletProgrammableDelay, store_tabletProgrammableDelay);
/***********************************************************************
* 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);
return sysfs_emit(buf, "%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;
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 sysfs_emit(buf, 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 struct aiptek_map stylus_button_map[] = {
{ "upper" , AIPTEK_STYLUS_UPPER_BUTTON },
{ "lower" , AIPTEK_STYLUS_LOWER_BUTTON },
{ NULL, AIPTEK_INVALID_VALUE }
};
static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return sysfs_emit(buf, "%s\n" , map_val_to_str(stylus_button_map,
aiptek->curSetting.stylusButtonUpper));
}
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);
int new_button = map_str_to_val(stylus_button_map, buf, count);
if (new_button == AIPTEK_INVALID_VALUE)
return -EINVAL;
aiptek->newSetting.stylusButtonUpper = new_button;
return count;
}
static DEVICE_ATTR(stylus_upper,
S_IRUGO | S_IWUSR,
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);
return sysfs_emit(buf, "%s\n" , map_val_to_str(stylus_button_map,
aiptek->curSetting.stylusButtonLower));
}
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);
int new_button = map_str_to_val(stylus_button_map, buf, count);
if (new_button == AIPTEK_INVALID_VALUE)
return -EINVAL;
aiptek->newSetting.stylusButtonLower = new_button;
return count;
}
static DEVICE_ATTR(stylus_lower,
S_IRUGO | S_IWUSR,
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 struct aiptek_map mouse_button_map[] = {
{ "left" , AIPTEK_MOUSE_LEFT_BUTTON },
{ "middle" , AIPTEK_MOUSE_MIDDLE_BUTTON },
{ "right" , AIPTEK_MOUSE_RIGHT_BUTTON },
{ NULL, AIPTEK_INVALID_VALUE }
};
static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return sysfs_emit(buf, "%s\n" , map_val_to_str(mouse_button_map,
aiptek->curSetting.mouseButtonLeft));
}
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);
int new_button = map_str_to_val(mouse_button_map, buf, count);
if (new_button == AIPTEK_INVALID_VALUE)
return -EINVAL;
aiptek->newSetting.mouseButtonLeft = new_button;
return count;
}
static DEVICE_ATTR(mouse_left,
S_IRUGO | S_IWUSR,
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);
return sysfs_emit(buf, "%s\n" , map_val_to_str(mouse_button_map,
aiptek->curSetting.mouseButtonMiddle));
}
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);
int new_button = map_str_to_val(mouse_button_map, buf, count);
if (new_button == AIPTEK_INVALID_VALUE)
return -EINVAL;
aiptek->newSetting.mouseButtonMiddle = new_button;
return count;
}
static DEVICE_ATTR(mouse_middle,
S_IRUGO | S_IWUSR,
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);
return sysfs_emit(buf, "%s\n" , map_val_to_str(mouse_button_map,
aiptek->curSetting.mouseButtonRight));
}
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);
int new_button = map_str_to_val(mouse_button_map, buf, count);
if (new_button == AIPTEK_INVALID_VALUE)
return -EINVAL;
aiptek->newSetting.mouseButtonRight = new_button;
return count;
}
static DEVICE_ATTR(mouse_right,
S_IRUGO | S_IWUSR,
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->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
return sysfs_emit(buf, "disable\n" );
} else {
return sysfs_emit(buf, "%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);
int err, w;
err = kstrtoint(buf, 10 , &w);
if (err)
return err;
aiptek->newSetting.wheel = w;
return count;
}
static DEVICE_ATTR(wheel,
S_IRUGO | S_IWUSR, 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)
{
/* There is nothing useful to display, so a one-line manual
* is in order . . .
*/
return sysfs_emit(buf, "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);
/* 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_IWUSR, 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);
return sysfs_emit(buf, "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);
return sysfs_emit(buf, "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);
return sysfs_emit(buf, "%04x\n" , aiptek->features.firmwareCode);
}
static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
static struct attribute *aiptek_dev_attrs[] = {
&dev_attr_size.attr,
&dev_attr_pointer_mode.attr,
&dev_attr_coordinate_mode.attr,
&dev_attr_tool_mode.attr,
&dev_attr_xtilt.attr,
&dev_attr_ytilt.attr,
&dev_attr_jitter.attr,
&dev_attr_delay.attr,
&dev_attr_event_count.attr,
&dev_attr_diagnostic.attr,
&dev_attr_odm_code.attr,
&dev_attr_model_code.attr,
&dev_attr_firmware_code.attr,
&dev_attr_stylus_lower.attr,
&dev_attr_stylus_upper.attr,
&dev_attr_mouse_left.attr,
&dev_attr_mouse_middle.attr,
&dev_attr_mouse_right.attr,
&dev_attr_wheel.attr,
&dev_attr_execute.attr,
NULL
};
ATTRIBUTE_GROUPS(aiptek_dev);
/***********************************************************************
* 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;
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 400 ms will be tried
* if you do not specify any command line parameter .
*/
speeds[0 ] = programmableDelay;
aiptek = kzalloc(sizeof (*aiptek), GFP_KERNEL);
inputdev = input_allocate_device();
if (!aiptek || !inputdev) {
dev_warn(&intf->dev,
"cannot allocate memory or input device\n" );
goto fail1;
}
aiptek->data = usb_alloc_coherent(usbdev, AIPTEK_PACKET_LENGTH,
GFP_KERNEL, &aiptek->data_dma);
if (!aiptek->data) {
dev_warn(&intf->dev, "cannot allocate usb buffer\n" );
goto fail1;
}
aiptek->urb = usb_alloc_urb(0 , GFP_KERNEL);
if (!aiptek->urb) {
dev_warn(&intf->dev, "cannot allocate urb\n" );
goto fail2;
}
aiptek->inputdev = inputdev;
aiptek->intf = intf;
aiptek->ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
aiptek->inDelay = 0 ;
aiptek->endDelay = 0 ;
aiptek->previousJitterable = 0 ;
aiptek->lastMacro = -1 ;
/* 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 .
*/
for (i = 0 ; i < ARRAY_SIZE(eventTypes); ++i)
__set_bit(eventTypes[i], inputdev->evbit);
for (i = 0 ; i < ARRAY_SIZE(absEvents); ++i)
__set_bit(absEvents[i], inputdev->absbit);
for (i = 0 ; i < ARRAY_SIZE(relEvents); ++i)
__set_bit(relEvents[i], inputdev->relbit);
__set_bit(MSC_SERIAL, inputdev->mscbit);
/* Set up key and button codes */
for (i = 0 ; i < ARRAY_SIZE(buttonEvents); ++i)
__set_bit(buttonEvents[i], inputdev->keybit);
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 );
err = usb_find_common_endpoints(intf->cur_altsetting,
NULL, NULL, &endpoint, NULL);
if (err) {
dev_err(&intf->dev,
"interface has no int in endpoints, but must have minimum 1\n" );
goto fail3;
}
/* Go set up our URB, which is called when the tablet receives
* input .
*/
usb_fill_int_urb(aiptek->urb,
usbdev,
usb_rcvintpipe(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 0 x0 . 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 0 x0 , 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 (input_abs_get_max(aiptek->inputdev, ABS_X) > 0 ) {
dev_info(&intf->dev,
"Aiptek using %d ms programming speed\n" ,
aiptek->curSetting.programmableDelay);
break ;
}
}
/* Murphy says that some day someone will have a tablet that fails the
above test. That's you, Frederic Rodrigo */
if (i == ARRAY_SIZE(speeds)) {
dev_info(&intf->dev,
"Aiptek tried all speeds, no sane response\n" );
err = -EINVAL;
goto fail3;
}
/* Associate this driver's struct with the usb interface.
*/
usb_set_intfdata(intf, aiptek);
/* Register the tablet as an Input Device
*/
err = input_register_device(aiptek->inputdev);
if (err) {
dev_warn(&intf->dev,
"input_register_device returned err: %d\n" , err);
goto fail3;
}
return 0 ;
fail3: usb_free_urb(aiptek->urb);
fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
aiptek->data_dma);
fail1: usb_set_intfdata(intf, NULL);
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);
usb_free_urb(aiptek->urb);
usb_free_coherent(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,
.dev_groups = aiptek_dev_groups,
};
module_usb_driver(aiptek_driver);
MODULE_AUTHOR("Bryan W. Headley/Chris Atenasio/Cedric Brun/Rene van Paassen" );
MODULE_DESCRIPTION("Aiptek HyperPen USB Tablet Driver" );
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" );
Messung V0.5 in Prozent C=94 H=95 G=94
¤ Dauer der Verarbeitung: 0.52 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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