linux/include/linux/joystick.h
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   1#ifndef _LINUX_JOYSTICK_H
   2#define _LINUX_JOYSTICK_H
   3
   4/*
   5 *  Copyright (C) 1996-2000 Vojtech Pavlik
   6 *
   7 *  Sponsored by SuSE
   8 */
   9
  10/*
  11 * This program is free software; you can redistribute it and/or modify
  12 * it under the terms of the GNU General Public License as published by
  13 * the Free Software Foundation; either version 2 of the License, or 
  14 * (at your option) any later version.
  15 * 
  16 * This program is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 * GNU General Public License for more details.
  20 * 
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program; if not, write to the Free Software
  23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  24 * 
  25 * Should you need to contact me, the author, you can do so either by
  26 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
  27 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
  28 */
  29
  30#include <linux/types.h>
  31#include <linux/input.h>
  32
  33/*
  34 * Version
  35 */
  36
  37#define JS_VERSION              0x020100
  38
  39/*
  40 * Types and constants for reading from /dev/js
  41 */
  42
  43#define JS_EVENT_BUTTON         0x01    /* button pressed/released */
  44#define JS_EVENT_AXIS           0x02    /* joystick moved */
  45#define JS_EVENT_INIT           0x80    /* initial state of device */
  46
  47struct js_event {
  48        __u32 time;     /* event timestamp in milliseconds */
  49        __s16 value;    /* value */
  50        __u8 type;      /* event type */
  51        __u8 number;    /* axis/button number */
  52};
  53
  54/*
  55 * IOCTL commands for joystick driver
  56 */
  57
  58#define JSIOCGVERSION           _IOR('j', 0x01, __u32)                          /* get driver version */
  59
  60#define JSIOCGAXES              _IOR('j', 0x11, __u8)                           /* get number of axes */
  61#define JSIOCGBUTTONS           _IOR('j', 0x12, __u8)                           /* get number of buttons */
  62#define JSIOCGNAME(len)         _IOC(_IOC_READ, 'j', 0x13, len)                 /* get identifier string */
  63
  64#define JSIOCSCORR              _IOW('j', 0x21, struct js_corr)                 /* set correction values */
  65#define JSIOCGCORR              _IOR('j', 0x22, struct js_corr)                 /* get correction values */
  66
  67#define JSIOCSAXMAP             _IOW('j', 0x31, __u8[ABS_CNT])                  /* set axis mapping */
  68#define JSIOCGAXMAP             _IOR('j', 0x32, __u8[ABS_CNT])                  /* get axis mapping */
  69#define JSIOCSBTNMAP            _IOW('j', 0x33, __u16[KEY_MAX - BTN_MISC + 1])  /* set button mapping */
  70#define JSIOCGBTNMAP            _IOR('j', 0x34, __u16[KEY_MAX - BTN_MISC + 1])  /* get button mapping */
  71
  72/*
  73 * Types and constants for get/set correction
  74 */
  75
  76#define JS_CORR_NONE            0x00    /* returns raw values */
  77#define JS_CORR_BROKEN          0x01    /* broken line */
  78
  79struct js_corr {
  80        __s32 coef[8];
  81        __s16 prec;
  82        __u16 type;
  83};
  84
  85/*
  86 * v0.x compatibility definitions
  87 */
  88
  89#define JS_RETURN               sizeof(struct JS_DATA_TYPE)
  90#define JS_TRUE                 1
  91#define JS_FALSE                0
  92#define JS_X_0                  0x01
  93#define JS_Y_0                  0x02
  94#define JS_X_1                  0x04
  95#define JS_Y_1                  0x08
  96#define JS_MAX                  2
  97
  98#define JS_DEF_TIMEOUT          0x1300
  99#define JS_DEF_CORR             0
 100#define JS_DEF_TIMELIMIT        10L
 101
 102#define JS_SET_CAL              1
 103#define JS_GET_CAL              2
 104#define JS_SET_TIMEOUT          3
 105#define JS_GET_TIMEOUT          4
 106#define JS_SET_TIMELIMIT        5
 107#define JS_GET_TIMELIMIT        6
 108#define JS_GET_ALL              7
 109#define JS_SET_ALL              8
 110
 111struct JS_DATA_TYPE {
 112        __s32 buttons;
 113        __s32 x;
 114        __s32 y;
 115};
 116
 117struct JS_DATA_SAVE_TYPE_32 {
 118        __s32 JS_TIMEOUT;
 119        __s32 BUSY;
 120        __s32 JS_EXPIRETIME;
 121        __s32 JS_TIMELIMIT;
 122        struct JS_DATA_TYPE JS_SAVE;
 123        struct JS_DATA_TYPE JS_CORR;
 124};
 125
 126struct JS_DATA_SAVE_TYPE_64 {
 127        __s32 JS_TIMEOUT;
 128        __s32 BUSY;
 129        __s64 JS_EXPIRETIME;
 130        __s64 JS_TIMELIMIT;
 131        struct JS_DATA_TYPE JS_SAVE;
 132        struct JS_DATA_TYPE JS_CORR;
 133};
 134
 135#ifdef __KERNEL__
 136#if BITS_PER_LONG == 64
 137#define JS_DATA_SAVE_TYPE JS_DATA_SAVE_TYPE_64
 138#elif BITS_PER_LONG == 32
 139#define JS_DATA_SAVE_TYPE JS_DATA_SAVE_TYPE_32
 140#else
 141#error Unexpected BITS_PER_LONG
 142#endif
 143#endif
 144
 145#endif /* _LINUX_JOYSTICK_H */
 146
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