litmus-rt.git - The LITMUS^RT kernel.

diff options

author	Adrian Bunk <bunk@kernel.org>	2008-07-25 22:46:27 -0400
committer	Linus Torvalds <torvalds@linux-foundation.org>	2008-07-26 15:00:12 -0400
commit	6ca813c4e515d9b868cd71703ef15f4af3aebb21 (patch)
tree	f52630d2fe052e24ca34cc91dce2e691eac7a5ee /drivers
parent	3d1e412ac5570a669e1b1fc5fd0f6859250c3d76 (diff)

video/stifb.c: make 2 functions static

This patch makes the following needlessly global functions static: - stifb_init_fb() - stifb_init() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Diffstat (limited to 'drivers')

-rw-r--r--

drivers/video/stifb.c

1 files changed, 2 insertions, 4 deletions

  *  Initialization
  */
-int __init
+static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
-stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 {
         struct fb_fix_screeninfo *fix;
         struct fb_var_screeninfo *var;
 int __init
 stifb_setup(char *options);
-int __init
+static int __init stifb_init(void)
-stifb_init(void)
 {
         struct sti_struct *sti;
         struct sti_struct *def_sti;

1da177e4c3f4

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/* * 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/input.h> #include <linux/module.h> #include <linux/init.h> #include <linux/usb.h> #include <linux/usb_input.h> #include <linux/sched.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 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 pt_regs *regs) { 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 { input_regs(inputdev, regs); 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 { input_regs(inputdev, regs); 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 { input_regs(inputdev, regs); 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) { input_regs(inputdev, regs); /* 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) { input_regs(inputdev, regs); /* 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))); input_regs(inputdev, regs); 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 = inputdev->private; 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 = inputdev->private; usb_kill_urb(aiptek->urb); } /*********************************************************************** * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x, * where they were known as usb_set_report and usb_get_report. */ static int aiptek_set_report(struct aiptek *aiptek, unsigned char report_type, unsigned char report_id, void *buffer, int size) { return usb_control_msg(aiptek->usbdev, usb_sndctrlpipe(aiptek->usbdev, 0), USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, (report_type << 8) + report_id, aiptek->ifnum, buffer, size, 5000); } static int aiptek_get_report(struct aiptek *aiptek, unsigned char report_type, unsigned char report_id, void *buffer, int size) { return usb_control_msg(aiptek->usbdev, usb_rcvctrlpipe(aiptek->usbdev, 0), USB_REQ_GET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, (report_type << 8) + report_id, aiptek->ifnum, buffer, size, 5000); } /*********************************************************************** * Send a command to the tablet. */ static int aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data) { const int sizeof_buf = 3 * sizeof(u8); int ret; u8 *buf; buf = kmalloc(sizeof_buf, GFP_KERNEL); if (!buf) return -ENOMEM; buf[0] = 2; buf[1] = command; buf[2] = data; if ((ret = aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) { dbg("aiptek_program: failed, tried to send: 0x%02x 0x%02x", command, data); } kfree(buf); return ret < 0 ? ret : 0; } /*********************************************************************** * Retrieve information from the tablet. Querying info is defined as first * sending the {command,data} sequence as a command, followed by a wait * (aka, "programmaticDelay") and then a "read" request. */ static int aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data) { const int sizeof_buf = 3 * sizeof(u8); int ret; u8 *buf; buf = kmalloc(sizeof_buf, GFP_KERNEL); if (!buf) return -ENOMEM; buf[0] = 2; buf[1] = command; buf[2] = data; if (aiptek_command(aiptek, command, data) != 0) { kfree(buf); return -EIO; } msleep(aiptek->curSetting.programmableDelay); if ((ret = aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) { dbg("aiptek_query failed: returned 0x%02x 0x%02x 0x%02x", buf[0], buf[1], buf[2]); ret = -EIO; } else { ret = le16_to_cpu(get_unaligned((__le16 *) (buf + 1))); } kfree(buf); return ret; } /*********************************************************************** * Program the tablet into either absolute or relative mode. * We also get information about the tablet's size. */ static int aiptek_program_tablet(struct aiptek *aiptek) { int ret; /* Execute Resolution500LPI */ if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0) return ret; /* Query getModelCode */ if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0) return ret; aiptek->features.modelCode = ret & 0xff; /* Query getODMCode */ if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0) return ret; aiptek->features.odmCode = ret; /* Query getFirmwareCode */ if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0) return ret; aiptek->features.firmwareCode = ret; /* Query getXextension */ if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0) return ret; aiptek->inputdev.absmin[ABS_X] = 0; aiptek->inputdev.absmax[ABS_X] = ret - 1; /* Query getYextension */ if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0) return ret; aiptek->inputdev.absmin[ABS_Y] = 0; aiptek->inputdev.absmax[ABS_Y] = ret - 1; /* Query getPressureLevels */ if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0) return ret; aiptek->inputdev.absmin[ABS_PRESSURE] = 0; aiptek->inputdev.absmax[ABS_PRESSURE] = ret - 1; /* Depending on whether we are in absolute or relative mode, we will * do a switchToTablet(absolute) or switchToMouse(relative) command. */ if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_ABSOLUTE_MODE) { /* Execute switchToTablet */ if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) { return ret; } } else { /* Execute switchToMouse */ if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) { return ret; } } /* Enable the macro keys */ if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0) return ret; #if 0 /* Execute FilterOn */ if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0) return ret; #endif /* Execute AutoGainOn */ if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0) return ret; /* Reset the eventCount, so we track events from last (re)programming */ aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA; aiptek->eventCount = 0; return 0; } /*********************************************************************** * Sysfs functions. Sysfs prefers that individually-tunable parameters * exist in their separate pseudo-files. Summary data that is immutable * may exist in a singular file so long as you don't define a writeable * interface. */ /*********************************************************************** * support the 'size' file -- display support */ static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "%dx%d\n", aiptek->inputdev.absmax[ABS_X] + 1, aiptek->inputdev.absmax[ABS_Y] + 1); } /* These structs define the sysfs files, param #1 is the name of the * file, param 2 is the file permissions, param 3 & 4 are to the * output generator and input parser routines. Absence of a routine is * permitted -- it only means can't either 'cat' the file, or send data * to it. */ static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL); /*********************************************************************** * support routines for the 'product_id' file */ static ssize_t show_tabletProductId(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->inputdev.id.product); } static DEVICE_ATTR(product_id, S_IRUGO, show_tabletProductId, NULL); /*********************************************************************** * support routines for the 'vendor_id' file */ static ssize_t show_tabletVendorId(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->inputdev.id.vendor); } static DEVICE_ATTR(vendor_id, S_IRUGO, show_tabletVendorId, NULL); /*********************************************************************** * support routines for the 'vendor' file */ static ssize_t show_tabletManufacturer(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); int retval; if (aiptek == NULL) return 0; retval = snprintf(buf, PAGE_SIZE, "%s\n", aiptek->usbdev->manufacturer); return retval; } static DEVICE_ATTR(vendor, S_IRUGO, show_tabletManufacturer, NULL); /*********************************************************************** * support routines for the 'product' file */ static ssize_t show_tabletProduct(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); int retval; if (aiptek == NULL) return 0; retval = snprintf(buf, PAGE_SIZE, "%s\n", aiptek->usbdev->product); return retval; } static DEVICE_ATTR(product, S_IRUGO, show_tabletProduct, NULL); /*********************************************************************** * support routines for the 'pointer_mode' file. Note that this file * both displays current setting and allows reprogramming. */ static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); char *s; if (aiptek == NULL) return 0; switch (aiptek->curSetting.pointerMode) { case AIPTEK_POINTER_ONLY_STYLUS_MODE: s = "stylus"; break; case AIPTEK_POINTER_ONLY_MOUSE_MODE: s = "mouse"; break; case AIPTEK_POINTER_EITHER_MODE: s = "either"; break; default: s = "unknown"; break; } return snprintf(buf, PAGE_SIZE, "%s\n", s); } static ssize_t store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (strcmp(buf, "stylus") == 0) { aiptek->newSetting.pointerMode = AIPTEK_POINTER_ONLY_STYLUS_MODE; } else if (strcmp(buf, "mouse") == 0) { aiptek->newSetting.pointerMode = AIPTEK_POINTER_ONLY_MOUSE_MODE; } else if (strcmp(buf, "either") == 0) { aiptek->newSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE; } return count; } static DEVICE_ATTR(pointer_mode, S_IRUGO | S_IWUGO, show_tabletPointerMode, store_tabletPointerMode); /*********************************************************************** * support routines for the 'coordinate_mode' file. Note that this file * both displays current setting and allows reprogramming. */ static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); char *s; if (aiptek == NULL) return 0; switch (aiptek->curSetting.coordinateMode) { case AIPTEK_COORDINATE_ABSOLUTE_MODE: s = "absolute"; break; case AIPTEK_COORDINATE_RELATIVE_MODE: s = "relative"; break; default: s = "unknown"; break; } return snprintf(buf, PAGE_SIZE, "%s\n", s); } static ssize_t store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (strcmp(buf, "absolute") == 0) { aiptek->newSetting.pointerMode = AIPTEK_COORDINATE_ABSOLUTE_MODE; } else if (strcmp(buf, "relative") == 0) { aiptek->newSetting.pointerMode = AIPTEK_COORDINATE_RELATIVE_MODE; } return count; } static DEVICE_ATTR(coordinate_mode, S_IRUGO | S_IWUGO, show_tabletCoordinateMode, store_tabletCoordinateMode); /*********************************************************************** * support routines for the 'tool_mode' file. Note that this file * both displays current setting and allows reprogramming. */ static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); char *s; if (aiptek == NULL) return 0; switch (TOOL_BUTTON(aiptek->curSetting.toolMode)) { case AIPTEK_TOOL_BUTTON_MOUSE_MODE: s = "mouse"; break; case AIPTEK_TOOL_BUTTON_ERASER_MODE: s = "eraser"; break; case AIPTEK_TOOL_BUTTON_PENCIL_MODE: s = "pencil"; break; case AIPTEK_TOOL_BUTTON_PEN_MODE: s = "pen"; break; case AIPTEK_TOOL_BUTTON_BRUSH_MODE: s = "brush"; break; case AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE: s = "airbrush"; break; case AIPTEK_TOOL_BUTTON_LENS_MODE: s = "lens"; break; default: s = "unknown"; break; } return snprintf(buf, PAGE_SIZE, "%s\n", s); } static ssize_t store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (strcmp(buf, "mouse") == 0) { aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_MOUSE_MODE; } else if (strcmp(buf, "eraser") == 0) { aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_ERASER_MODE; } else if (strcmp(buf, "pencil") == 0) { aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_PENCIL_MODE; } else if (strcmp(buf, "pen") == 0) { aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE; } else if (strcmp(buf, "brush") == 0) { aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_BRUSH_MODE; } else if (strcmp(buf, "airbrush") == 0) { aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE; } else if (strcmp(buf, "lens") == 0) { aiptek->newSetting.toolMode = AIPTEK_TOOL_BUTTON_LENS_MODE; } return count; } static DEVICE_ATTR(tool_mode, S_IRUGO | S_IWUGO, show_tabletToolMode, store_tabletToolMode); /*********************************************************************** * support routines for the 'xtilt' file. Note that this file * both displays current setting and allows reprogramming. */ static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) { return snprintf(buf, PAGE_SIZE, "disable\n"); } else { return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.xTilt); } } static ssize_t store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); int x; if (aiptek == NULL) return 0; if (strcmp(buf, "disable") == 0) { aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE; } else { x = (int)simple_strtol(buf, NULL, 10); if (x >= AIPTEK_TILT_MIN && x <= AIPTEK_TILT_MAX) { aiptek->newSetting.xTilt = x; } } return count; } static DEVICE_ATTR(xtilt, S_IRUGO | S_IWUGO, show_tabletXtilt, store_tabletXtilt); /*********************************************************************** * support routines for the 'ytilt' file. Note that this file * both displays current setting and allows reprogramming. */ static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) { return snprintf(buf, PAGE_SIZE, "disable\n"); } else { return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.yTilt); } } static ssize_t store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); int y; if (aiptek == NULL) return 0; if (strcmp(buf, "disable") == 0) { aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE; } else { y = (int)simple_strtol(buf, NULL, 10); if (y >= AIPTEK_TILT_MIN && y <= AIPTEK_TILT_MAX) { aiptek->newSetting.yTilt = y; } } return count; } static DEVICE_ATTR(ytilt, S_IRUGO | S_IWUGO, show_tabletYtilt, store_tabletYtilt); /*********************************************************************** * support routines for the 'jitter' file. Note that this file * both displays current setting and allows reprogramming. */ static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay); } static ssize_t store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; aiptek->newSetting.jitterDelay = (int)simple_strtol(buf, NULL, 10); return count; } static DEVICE_ATTR(jitter, S_IRUGO | S_IWUGO, show_tabletJitterDelay, store_tabletJitterDelay); /*********************************************************************** * support routines for the 'delay' file. Note that this file * both displays current setting and allows reprogramming. */ static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.programmableDelay); } static ssize_t store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; aiptek->newSetting.programmableDelay = (int)simple_strtol(buf, NULL, 10); return count; } static DEVICE_ATTR(delay, S_IRUGO | S_IWUGO, show_tabletProgrammableDelay, store_tabletProgrammableDelay); /*********************************************************************** * support routines for the 'input_path' file. Note that this file * only displays current setting. */ static ssize_t show_tabletInputDevice(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "/dev/input/%s\n", aiptek->features.inputPath); } static DEVICE_ATTR(input_path, S_IRUGO, show_tabletInputDevice, NULL); /*********************************************************************** * support routines for the 'event_count' file. Note that this file * only displays current setting. */ static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount); } static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL); /*********************************************************************** * support routines for the 'diagnostic' file. Note that this file * only displays current setting. */ static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); char *retMsg; if (aiptek == NULL) return 0; switch (aiptek->diagnostic) { case AIPTEK_DIAGNOSTIC_NA: retMsg = "no errors\n"; break; case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE: retMsg = "Error: receiving relative reports\n"; break; case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE: retMsg = "Error: receiving absolute reports\n"; break; case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED: if (aiptek->curSetting.pointerMode == AIPTEK_POINTER_ONLY_MOUSE_MODE) { retMsg = "Error: receiving stylus reports\n"; } else { retMsg = "Error: receiving mouse reports\n"; } break; default: return 0; } return snprintf(buf, PAGE_SIZE, retMsg); } static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL); /*********************************************************************** * support routines for the 'stylus_upper' file. Note that this file * both displays current setting and allows for setting changing. */ static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); char *s; if (aiptek == NULL) return 0; switch (aiptek->curSetting.stylusButtonUpper) { case AIPTEK_STYLUS_UPPER_BUTTON: s = "upper"; break; case AIPTEK_STYLUS_LOWER_BUTTON: s = "lower"; break; default: s = "unknown"; break; } return snprintf(buf, PAGE_SIZE, "%s\n", s); } static ssize_t store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (strcmp(buf, "upper") == 0) { aiptek->newSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON; } else if (strcmp(buf, "lower") == 0) { aiptek->newSetting.stylusButtonUpper = AIPTEK_STYLUS_LOWER_BUTTON; } return count; } static DEVICE_ATTR(stylus_upper, S_IRUGO | S_IWUGO, show_tabletStylusUpper, store_tabletStylusUpper); /*********************************************************************** * support routines for the 'stylus_lower' file. Note that this file * both displays current setting and allows for setting changing. */ static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); char *s; if (aiptek == NULL) return 0; switch (aiptek->curSetting.stylusButtonLower) { case AIPTEK_STYLUS_UPPER_BUTTON: s = "upper"; break; case AIPTEK_STYLUS_LOWER_BUTTON: s = "lower"; break; default: s = "unknown"; break; } return snprintf(buf, PAGE_SIZE, "%s\n", s); } static ssize_t store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (strcmp(buf, "upper") == 0) { aiptek->newSetting.stylusButtonLower = AIPTEK_STYLUS_UPPER_BUTTON; } else if (strcmp(buf, "lower") == 0) { aiptek->newSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON; } return count; } static DEVICE_ATTR(stylus_lower, S_IRUGO | S_IWUGO, show_tabletStylusLower, store_tabletStylusLower); /*********************************************************************** * support routines for the 'mouse_left' file. Note that this file * both displays current setting and allows for setting changing. */ static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); char *s; if (aiptek == NULL) return 0; switch (aiptek->curSetting.mouseButtonLeft) { case AIPTEK_MOUSE_LEFT_BUTTON: s = "left"; break; case AIPTEK_MOUSE_MIDDLE_BUTTON: s = "middle"; break; case AIPTEK_MOUSE_RIGHT_BUTTON: s = "right"; break; default: s = "unknown"; break; } return snprintf(buf, PAGE_SIZE, "%s\n", s); } static ssize_t store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (strcmp(buf, "left") == 0) { aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON; } else if (strcmp(buf, "middle") == 0) { aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_MIDDLE_BUTTON; } else if (strcmp(buf, "right") == 0) { aiptek->newSetting.mouseButtonLeft = AIPTEK_MOUSE_RIGHT_BUTTON; } return count; } static DEVICE_ATTR(mouse_left, S_IRUGO | S_IWUGO, show_tabletMouseLeft, store_tabletMouseLeft); /*********************************************************************** * support routines for the 'mouse_middle' file. Note that this file * both displays current setting and allows for setting changing. */ static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); char *s; if (aiptek == NULL) return 0; switch (aiptek->curSetting.mouseButtonMiddle) { case AIPTEK_MOUSE_LEFT_BUTTON: s = "left"; break; case AIPTEK_MOUSE_MIDDLE_BUTTON: s = "middle"; break; case AIPTEK_MOUSE_RIGHT_BUTTON: s = "right"; break; default: s = "unknown"; break; } return snprintf(buf, PAGE_SIZE, "%s\n", s); } static ssize_t store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (strcmp(buf, "left") == 0) { aiptek->newSetting.mouseButtonMiddle = AIPTEK_MOUSE_LEFT_BUTTON; } else if (strcmp(buf, "middle") == 0) { aiptek->newSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON; } else if (strcmp(buf, "right") == 0) { aiptek->newSetting.mouseButtonMiddle = AIPTEK_MOUSE_RIGHT_BUTTON; } return count; } static DEVICE_ATTR(mouse_middle, S_IRUGO | S_IWUGO, show_tabletMouseMiddle, store_tabletMouseMiddle); /*********************************************************************** * support routines for the 'mouse_right' file. Note that this file * both displays current setting and allows for setting changing. */ static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); char *s; if (aiptek == NULL) return 0; switch (aiptek->curSetting.mouseButtonRight) { case AIPTEK_MOUSE_LEFT_BUTTON: s = "left"; break; case AIPTEK_MOUSE_MIDDLE_BUTTON: s = "middle"; break; case AIPTEK_MOUSE_RIGHT_BUTTON: s = "right"; break; default: s = "unknown"; break; } return snprintf(buf, PAGE_SIZE, "%s\n", s); } static ssize_t store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (strcmp(buf, "left") == 0) { aiptek->newSetting.mouseButtonRight = AIPTEK_MOUSE_LEFT_BUTTON; } else if (strcmp(buf, "middle") == 0) { aiptek->newSetting.mouseButtonRight = AIPTEK_MOUSE_MIDDLE_BUTTON; } else if (strcmp(buf, "right") == 0) { aiptek->newSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON; } return count; } static DEVICE_ATTR(mouse_right, S_IRUGO | S_IWUGO, show_tabletMouseRight, store_tabletMouseRight); /*********************************************************************** * support routines for the 'wheel' file. Note that this file * both displays current setting and allows for setting changing. */ static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) { return snprintf(buf, PAGE_SIZE, "disable\n"); } else { return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.wheel); } } static ssize_t store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; aiptek->newSetting.wheel = (int)simple_strtol(buf, NULL, 10); return count; } static DEVICE_ATTR(wheel, S_IRUGO | S_IWUGO, show_tabletWheel, store_tabletWheel); /*********************************************************************** * support routines for the 'execute' file. Note that this file * both displays current setting and allows for setting changing. */ static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; /* There is nothing useful to display, so a one-line manual * is in order... */ return snprintf(buf, PAGE_SIZE, "Write anything to this file to program your tablet.\n"); } static ssize_t store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; /* We do not care what you write to this file. Merely the action * of writing to this file triggers a tablet reprogramming. */ memcpy(&aiptek->curSetting, &aiptek->newSetting, sizeof(struct aiptek_settings)); if (aiptek_program_tablet(aiptek) < 0) return -EIO; return count; } static DEVICE_ATTR(execute, S_IRUGO | S_IWUGO, show_tabletExecute, store_tabletExecute); /*********************************************************************** * support routines for the 'odm_code' file. Note that this file * only displays current setting. */ static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode); } static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL); /*********************************************************************** * support routines for the 'model_code' file. Note that this file * only displays current setting. */ static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode); } static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL); /*********************************************************************** * support routines for the 'firmware_code' file. Note that this file * only displays current setting. */ static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf) { struct aiptek *aiptek = dev_get_drvdata(dev); if (aiptek == NULL) return 0; return snprintf(buf, PAGE_SIZE, "%04x\n", aiptek->features.firmwareCode); } static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL); /*********************************************************************** * This routine removes all existing sysfs files managed by this device * driver. */ static void aiptek_delete_files(struct device *dev) { device_remove_file(dev, &dev_attr_size); device_remove_file(dev, &dev_attr_product_id); device_remove_file(dev, &dev_attr_vendor_id); device_remove_file(dev, &dev_attr_vendor); device_remove_file(dev, &dev_attr_product); device_remove_file(dev, &dev_attr_pointer_mode); device_remove_file(dev, &dev_attr_coordinate_mode); device_remove_file(dev, &dev_attr_tool_mode); device_remove_file(dev, &dev_attr_xtilt); device_remove_file(dev, &dev_attr_ytilt); device_remove_file(dev, &dev_attr_jitter); device_remove_file(dev, &dev_attr_delay); device_remove_file(dev, &dev_attr_input_path); device_remove_file(dev, &dev_attr_event_count); device_remove_file(dev, &dev_attr_diagnostic); device_remove_file(dev, &dev_attr_odm_code); device_remove_file(dev, &dev_attr_model_code); device_remove_file(dev, &dev_attr_firmware_code); device_remove_file(dev, &dev_attr_stylus_lower); device_remove_file(dev, &dev_attr_stylus_upper); device_remove_file(dev, &dev_attr_mouse_left); device_remove_file(dev, &dev_attr_mouse_middle); device_remove_file(dev, &dev_attr_mouse_right); device_remove_file(dev, &dev_attr_wheel); device_remove_file(dev, &dev_attr_execute); } /*********************************************************************** * This routine creates the sysfs files managed by this device * driver. */ static int aiptek_add_files(struct device *dev) { int ret; if ((ret = device_create_file(dev, &dev_attr_size)) || (ret = device_create_file(dev, &dev_attr_product_id)) || (ret = device_create_file(dev, &dev_attr_vendor_id)) || (ret = device_create_file(dev, &dev_attr_vendor)) || (ret = device_create_file(dev, &dev_attr_product)) || (ret = device_create_file(dev, &dev_attr_pointer_mode)) || (ret = device_create_file(dev, &dev_attr_coordinate_mode)) || (ret = device_create_file(dev, &dev_attr_tool_mode)) || (ret = device_create_file(dev, &dev_attr_xtilt)) || (ret = device_create_file(dev, &dev_attr_ytilt)) || (ret = device_create_file(dev, &dev_attr_jitter)) || (ret = device_create_file(dev, &dev_attr_delay)) || (ret = device_create_file(dev, &dev_attr_input_path)) || (ret = device_create_file(dev, &dev_attr_event_count)) || (ret = device_create_file(dev, &dev_attr_diagnostic)) || (ret = device_create_file(dev, &dev_attr_odm_code)) || (ret = device_create_file(dev, &dev_attr_model_code)) || (ret = device_create_file(dev, &dev_attr_firmware_code)) || (ret = device_create_file(dev, &dev_attr_stylus_lower)) || (ret = device_create_file(dev, &dev_attr_stylus_upper)) || (ret = device_create_file(dev, &dev_attr_mouse_left)) || (ret = device_create_file(dev, &dev_attr_mouse_middle)) || (ret = device_create_file(dev, &dev_attr_mouse_right)) || (ret = device_create_file(dev, &dev_attr_wheel)) || (ret = device_create_file(dev, &dev_attr_execute))) { err("aiptek: killing own sysfs device files\n"); aiptek_delete_files(dev); } return ret; } /*********************************************************************** * This routine is called when a tablet has been identified. It basically * sets up the tablet and the driver's internal structures. */ static int aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *usbdev = interface_to_usbdev(intf); struct usb_endpoint_descriptor *endpoint; struct aiptek *aiptek; struct input_dev *inputdev; struct input_handle *inputhandle; struct list_head *node, *next; char path[64 + 1]; 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 }; /* programmableDelay is where the command-line specified * delay is kept. We make it the first element of speeds[], * so therefore, your override speed is tried first, then the * remainder. Note that the default value of 400ms will be tried * if you do not specify any command line parameter. */ speeds[0] = programmableDelay; if ((aiptek = kmalloc(sizeof(struct aiptek), GFP_KERNEL)) == NULL) return -ENOMEM; memset(aiptek, 0, sizeof(struct aiptek)); aiptek->data = usb_buffer_alloc(usbdev, AIPTEK_PACKET_LENGTH, SLAB_ATOMIC, &aiptek->data_dma); if (aiptek->data == NULL) { kfree(aiptek); return -ENOMEM; } aiptek->urb = usb_alloc_urb(0, GFP_KERNEL); if (aiptek->urb == NULL) { usb_buffer_free(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data, aiptek->data_dma); kfree(aiptek); return -ENOMEM; } /* 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 */ memcpy(&aiptek->newSetting, &aiptek->curSetting, sizeof(struct aiptek_settings)); /* Now program the capacities of the tablet, in terms of being * an input device. */ aiptek->inputdev.evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_REL) | BIT(EV_MSC); aiptek->inputdev.absbit[0] |= (BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE) | BIT(ABS_TILT_X) | BIT(ABS_TILT_Y) | BIT(ABS_WHEEL) | BIT(ABS_MISC)); aiptek->inputdev.relbit[0] |= (BIT(REL_X) | BIT(REL_Y) | BIT(REL_WHEEL) | BIT(REL_MISC)); aiptek->inputdev.keybit[LONG(BTN_LEFT)] |= (BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE)); aiptek->inputdev.keybit[LONG(BTN_DIGI)] |= (BIT(BTN_TOOL_PEN) | BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_BRUSH) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_TOOL_LENS) | BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2)); aiptek->inputdev.mscbit[0] = BIT(MSC_SERIAL); /* Programming the tablet macro keys needs to be done with a for loop * as the keycodes are discontiguous. */ for (i = 0; i < sizeof(macroKeyEvents) / sizeof(macroKeyEvents[0]); ++i) set_bit(macroKeyEvents[i], aiptek->inputdev.keybit); /* Set up client data, pointers to open and close routines * for the input device. */ aiptek->inputdev.private = aiptek; aiptek->inputdev.open = aiptek_open; aiptek->inputdev.close = aiptek_close; /* 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... */ if (usb_make_path(usbdev, path, 64) > 0) sprintf(aiptek->features.usbPath, "%s/input0", path); /* 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. */ aiptek->inputdev.absmin[ABS_X] = 0; aiptek->inputdev.absmax[ABS_X] = 2999; aiptek->inputdev.absmin[ABS_Y] = 0; aiptek->inputdev.absmax[ABS_Y] = 2249; aiptek->inputdev.absmin[ABS_PRESSURE] = 0; aiptek->inputdev.absmax[ABS_PRESSURE] = 511; aiptek->inputdev.absmin[ABS_TILT_X] = AIPTEK_TILT_MIN; aiptek->inputdev.absmax[ABS_TILT_X] = AIPTEK_TILT_MAX; aiptek->inputdev.absmin[ABS_TILT_Y] = AIPTEK_TILT_MIN; aiptek->inputdev.absmax[ABS_TILT_Y] = AIPTEK_TILT_MAX; aiptek->inputdev.absmin[ABS_WHEEL] = AIPTEK_WHEEL_MIN; aiptek->inputdev.absmax[ABS_WHEEL] = AIPTEK_WHEEL_MAX - 1; aiptek->inputdev.absfuzz[ABS_X] = 0; aiptek->inputdev.absfuzz[ABS_Y] = 0; aiptek->inputdev.absfuzz[ABS_PRESSURE] = 0; aiptek->inputdev.absfuzz[ABS_TILT_X] = 0; aiptek->inputdev.absfuzz[ABS_TILT_Y] = 0; aiptek->inputdev.absfuzz[ABS_WHEEL] = 0; aiptek->inputdev.absflat[ABS_X] = 0; aiptek->inputdev.absflat[ABS_Y] = 0; aiptek->inputdev.absflat[ABS_PRESSURE] = 0; aiptek->inputdev.absflat[ABS_TILT_X] = 0; aiptek->inputdev.absflat[ABS_TILT_Y] = 0; aiptek->inputdev.absflat[ABS_WHEEL] = 0; aiptek->inputdev.name = "Aiptek"; aiptek->inputdev.phys = aiptek->features.usbPath; usb_to_input_id(usbdev, &aiptek->inputdev.id); aiptek->inputdev.dev = &intf->dev; aiptek->usbdev = usbdev; aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber; aiptek->inDelay = 0; aiptek->endDelay = 0; aiptek->previousJitterable = 0; endpoint = &intf->altsetting[0].endpoint[0].desc; /* Go set up our URB, which is called when the tablet receives * input. */ usb_fill_int_urb(aiptek->urb, aiptek->usbdev, usb_rcvintpipe(aiptek->usbdev, endpoint->bEndpointAddress), aiptek->data, 8, aiptek_irq, aiptek, endpoint->bInterval); aiptek->urb->transfer_dma = aiptek->data_dma; aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; /* Register the tablet as an Input Device */ input_register_device(&aiptek->inputdev); /* We now will look for the evdev device which is mapped to * the tablet. The partial name is kept in the link list of * input_handles associated with this input device. * What identifies an evdev input_handler is that it begins * with 'event', continues with a digit, and that in turn * is mapped to /{devfs}/input/eventN. */ inputdev = &aiptek->inputdev; list_for_each_safe(node, next, &inputdev->h_list) { inputhandle = to_handle(node); if (strncmp(inputhandle->name, "event", 5) == 0) { strcpy(aiptek->features.inputPath, inputhandle->name); break; } } info("input: Aiptek on %s (%s)\n", path, aiptek->features.inputPath); /* Program the tablet. This sets the tablet up in the mode * specified in newSetting, and also queries the tablet's * physical capacities. * * Sanity check: if a tablet doesn't like the slow programmatic * delay, we often get sizes of 0x0. Let's use that as an indicator * to try faster delays, up to 25 ms. If that logic fails, well, you'll * have to explain to us how your tablet thinks it's 0x0, and yet that's * not an error :-) */ for (i = 0; i < sizeof(speeds) / sizeof(speeds[0]); ++i) { aiptek->curSetting.programmableDelay = speeds[i]; (void)aiptek_program_tablet(aiptek); if (aiptek->inputdev.absmax[ABS_X] > 0) { info("input: Aiptek using %d ms programming speed\n", aiptek->curSetting.programmableDelay); break; } } /* Associate this driver's struct with the usb interface. */ usb_set_intfdata(intf, aiptek); /* Set up the sysfs files */ aiptek_add_files(&intf->dev); /* Make sure the evdev module is loaded. Assuming evdev IS a module :-) */ if (request_module("evdev") != 0) info("aiptek: error loading 'evdev' module"); return 0; } /* Forward declaration */ static void aiptek_disconnect(struct usb_interface *intf); static struct usb_driver aiptek_driver = { .owner = THIS_MODULE, .name = "aiptek", .probe = aiptek_probe, .disconnect = aiptek_disconnect, .id_table = aiptek_ids, }; /*********************************************************************** * Deal with tablet disconnecting from the system. */ static void aiptek_disconnect(struct usb_interface *intf) { struct aiptek *aiptek = usb_get_intfdata(intf); /* Disassociate driver's struct with usb interface */ usb_set_intfdata(intf, NULL); if (aiptek != NULL) { /* Free & unhook everything from the system. */ usb_kill_urb(aiptek->urb); input_unregister_device(&aiptek->inputdev); aiptek_delete_files(&intf->dev); usb_free_urb(aiptek->urb); usb_buffer_free(interface_to_usbdev(intf), AIPTEK_PACKET_LENGTH, aiptek->data, aiptek->data_dma); kfree(aiptek); } } static int __init aiptek_init(void) { int result = usb_register(&aiptek_driver); if (result == 0) { info(DRIVER_VERSION ": " DRIVER_AUTHOR); info(DRIVER_DESC); } return result; } static void __exit aiptek_exit(void) { usb_deregister(&aiptek_driver); } MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); module_param(programmableDelay, int, 0); MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming"); module_param(jitterDelay, int, 0); MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay"); module_init(aiptek_init); module_exit(aiptek_exit);


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