include/linux/joystick.h

   1 #ifndef _LINUX_JOYSTICK_H
   2 #define _LINUX_JOYSTICK_H
   3
   4 /*
   5  * /usr/include/linux/joystick.h  Version 1.2
   6  *
   7  * Copyright (C) 1996-1998 Vojtech Pavlik
   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@ucw.cz>, or by paper mail:
  27  * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
  28  */
  29
  30 #include <asm/types.h>
  31 #include <linux/module.h>
  32
  33 /*
  34  * Version
  35  */
  36
  37 #define JS_VERSION              0x01020d
  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
  47 struct js_event {
  48         __u32 time;     /* event timestamp in miliseconds */
  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 /*
  68  * Types and constants for get/set correction
  69  */
  70
  71 #define JS_CORR_NONE            0x00    /* returns raw values */
  72 #define JS_CORR_BROKEN          0x01    /* broken line */
  73
  74 struct js_corr {
  75         __s32 coef[8];
  76         __s16 prec;
  77         __u16 type;
  78 };
  79
  80 /*
  81  * v0.x compatibility definitions
  82  */
  83
  84 #define JS_RETURN               sizeof(struct JS_DATA_TYPE)
  85 #define JS_TRUE                 1
  86 #define JS_FALSE                0
  87 #define JS_X_0                  0x01
  88 #define JS_Y_0                  0x02
  89 #define JS_X_1                  0x04
  90 #define JS_Y_1                  0x08
  91 #define JS_MAX                  2
  92
  93 #define JS_DEF_TIMEOUT          0x1300
  94 #define JS_DEF_CORR             0
  95 #define JS_DEF_TIMELIMIT        10L
  96
  97 #define JS_SET_CAL              1
  98 #define JS_GET_CAL              2
  99 #define JS_SET_TIMEOUT          3
 100 #define JS_GET_TIMEOUT          4
 101 #define JS_SET_TIMELIMIT        5
 102 #define JS_GET_TIMELIMIT        6
 103 #define JS_GET_ALL              7
 104 #define JS_SET_ALL              8
 105
 106 struct JS_DATA_TYPE {
 107         int buttons;
 108         int x;
 109         int y;
 110 };
 111
 112 struct JS_DATA_SAVE_TYPE {
 113         int JS_TIMEOUT;
 114         int BUSY;
 115         long JS_EXPIRETIME;
 116         long JS_TIMELIMIT;
 117         struct JS_DATA_TYPE JS_SAVE;
 118         struct JS_DATA_TYPE JS_CORR;
 119 };
 120
 121 /*
 122  * Internal definitions
 123  */
 124
 125 #ifdef __KERNEL__
 126
 127 #define JS_BUFF_SIZE            64              /* output buffer size */
 128
 129 #include <linux/version.h>
 130
 131 #ifndef KERNEL_VERSION
 132 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
 133 #endif
 134
 135 #ifndef LINUX_VERSION_CODE
 136 #error "You need to use at least 2.0 Linux kernel."
 137 #endif
 138
 139 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,0,0)
 140 #error "You need to use at least 2.0 Linux kernel."
 141 #endif
 142
 143 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)
 144 #define JS_HAS_RDTSC (current_cpu_data.x86_capability & 0x10)
 145 #include <linux/init.h>
 146 #else
 147 #ifdef MODULE
 148 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,0,35)
 149 #define JS_HAS_RDTSC (x86_capability & 0x10)
 150 #else
 151 #define JS_HAS_RDTSC 0
 152 #endif
 153 #else
 154 #define JS_HAS_RDTSC (x86_capability & 0x10)
 155 #endif
 156 #define __initdata
 157 #define __init
 158 #define __cli cli
 159 #define __save_flags(flags) save_flags(flags)
 160 #define __restore_flags(flags)  restore_flags(flags)
 161 #define spin_lock_irqsave(x, flags) do { save_flags(flags); cli(); } while (0)
 162 #define spin_unlock_irqrestore(x, flags) restore_flags(flags)
 163 #define spin_lock_init(x) do { } while (0)
 164 typedef struct { int something; } spinlock_t;
 165 #define SPIN_LOCK_UNLOCKED { 0 }
 166 #define MODULE_AUTHOR(x)
 167 #define MODULE_PARM(x,y)
 168 #define MODULE_SUPPORTED_DEVICE(x)
 169 #define signal_pending(x) (((x)->signal) & ~((x)->blocked))
 170 #endif
 171
 172 /*
 173  * Parport stuff
 174  */
 175
 176 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)
 177 #define USE_PARPORT
 178 #endif
 179
 180 #ifdef USE_PARPORT
 181 #include <linux/parport.h>
 182 #define JS_PAR_DATA_IN(y)       parport_read_data(y->port)
 183 #define JS_PAR_DATA_OUT(x,y)    parport_write_data(y->port, x)
 184 #define JS_PAR_STATUS(y)        parport_read_status(y->port)
 185 #define JS_PAR_CTRL_IN(y)       parport_read_control(y->port)
 186 #define JS_PAR_CTRL_OUT(x,y)    parport_write_control(y->port, x)
 187 #define JS_PAR_ECTRL_OUT(x,y)   parport_write_econtrol(y->port, x)
 188 #else
 189 #define JS_PAR_DATA_IN(y)       inb(y)
 190 #define JS_PAR_DATA_OUT(x,y)    outb(x,y)
 191 #define JS_PAR_STATUS(y)        inb(y+1)
 192 #define JS_PAR_CTRL_IN(y)       inb(y+2)
 193 #define JS_PAR_CTRL_OUT(x,y)    outb(x,y+2)
 194 #define JS_PAR_ECTRL_OUT(x,y)   outb(x,y+0x402)
 195 #endif
 196
 197 #define JS_PAR_STATUS_INVERT    (0x80)
 198 #define JS_PAR_CTRL_INVERT      (0x04)
 199
 200 /*
 201  * Internal types
 202  */
 203
 204 struct js_dev;
 205
 206 typedef int (*js_read_func)(void *info, int **axes, int **buttons);
 207 typedef unsigned int (*js_time_func)(void);
 208 typedef int (*js_delta_func)(unsigned int x, unsigned int y);
 209 typedef int (*js_ops_func)(struct js_dev *dev);
 210
 211 struct js_data {
 212         int *axes;
 213         int *buttons;
 214 };
 215
 216 struct js_dev {
 217         struct js_dev *next;
 218         struct js_list *list;
 219         struct js_port *port;
 220         wait_queue_head_t wait;
 221         struct js_data cur;
 222         struct js_data new;
 223         struct js_corr *corr;
 224         struct js_event buff[JS_BUFF_SIZE];
 225         js_ops_func open;
 226         js_ops_func close;
 227         int ahead;
 228         int bhead;
 229         int tail;
 230         int num_axes;
 231         int num_buttons;
 232         char *name;
 233 };
 234
 235 struct js_list {
 236         struct js_list *next;
 237         struct js_dev *dev;
 238         int tail;
 239         int startup;
 240 };
 241
 242 struct js_port {
 243         struct js_port *next;
 244         struct js_port *prev;
 245         js_read_func read;
 246         struct js_dev **devs;
 247         int **axes;
 248         int **buttons;
 249         struct js_corr **corr;
 250         void *info;
 251         int ndevs;
 252 };
 253
 254 /*
 255  * Sub-module interface
 256  */
 257
 258 extern unsigned int js_time_speed;
 259 extern js_time_func js_get_time;
 260 extern js_delta_func js_delta;
 261
 262 extern unsigned int js_time_speed_a;
 263 extern js_time_func js_get_time_a;
 264 extern js_delta_func js_delta_a;
 265
 266 extern struct js_port *js_register_port(struct js_port *port, void *info,
 267         int devs, int infos, js_read_func read);
 268 extern struct js_port *js_unregister_port(struct js_port *port);
 269
 270 extern int js_register_device(struct js_port *port, int number, int axes,
 271         int buttons, char *name, js_ops_func open, js_ops_func close);
 272 extern void js_unregister_device(struct js_dev *dev);
 273
 274 /*
 275  * Kernel interface
 276  */
 277
 278 extern int js_init(void);
 279 extern int js_am_init(void);
 280 extern int js_an_init(void);
 281 extern int js_as_init(void);
 282 extern int js_console_init(void);
 283 extern int js_db9_init(void);
 284 extern int js_gr_init(void);
 285 extern int js_l4_init(void);
 286 extern int js_lt_init(void);
 287 extern int js_sw_init(void);
 288 extern int js_tm_init(void);
 289
 290 extern void js_am_setup(char *str, int *ints);
 291 extern void js_an_setup(char *str, int *ints);
 292 extern void js_as_setup(char *str, int *ints);
 293 extern void js_console_setup(char *str, int *ints);
 294 extern void js_db9_setup(char *str, int *ints);
 295 extern void js_l4_setup(char *str, int *ints);
 296
 297 #endif /* __KERNEL__ */
 298
 299 #endif /* _LINUX_JOYSTICK_H */