mirror of
https://github.com/X11Libre/xf86-input-joystick.git
synced 2026-04-14 11:54:23 +00:00
Stripped everything down to the minimum
Added generic data structs Splitted to multiple files Moved to newer joystick.h interface Added read_input function
This commit is contained in:
Sascha Hlusiak
166
src/linux_jstk.c
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166
src/linux_jstk.c
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/*
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* Copyright 2007 by Sascha Hlusiak. <saschahlusiak@freedesktop.org>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Sascha Hlusiak not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Sascha Hlusiak makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* SASCHA HLUSIAK DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL SASCHA HLUSIAK BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/types.h>
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#include <linux/joystick.h>
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#include <fcntl.h>
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#include <errno.h>
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#include "linux_jstk.h"
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#include "xf86Jstk.h"
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/***********************************************************************
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*
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* xf86JoystickOn --
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*
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* Open and initialize a joystick device
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*
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***********************************************************************
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*/
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int
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xf86JoystickOn(JoystickDevPtr joystick,int init)
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{
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char joy_name[128];
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if ((joystick->fd = open(joystick->device, O_RDWR | O_NDELAY, 0)) < 0) {
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xf86Msg(X_ERROR, "Cannot open joystick '%s' (%s)\n", joystick->device,
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strerror(errno));
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return -1;
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}
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/* ioctl(fd, JSIOCGVERSION, &version);*/
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if (ioctl(joystick->fd, JSIOCGAXES, &joystick->axes)==-1) {
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xf86Msg(X_ERROR, "Joystick: ioctl on '%s' failed (%s)\n", joystick->device,
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strerror(errno));
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return -1;
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}
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if (ioctl(joystick->fd, JSIOCGBUTTONS, &joystick->buttons)==-1) {
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xf86Msg(X_ERROR, "Joystick: ioctl on '%s' failed (%s)\n", joystick->device,
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strerror(errno));
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return -1;
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}
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if (init != 0) {
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if (ioctl(joystick->fd, JSIOCGNAME(128), joy_name)==-1) {
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xf86Msg(X_ERROR, "Joystick: ioctl on '%s' failed (%s)\n", joystick->device,
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strerror(errno));
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return -1;
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}
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xf86Msg(X_INFO, "Joystick: %s. %d buttons, %d axes\n",
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joy_name, joystick->axes, joystick->buttons);
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}
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return joystick->fd;
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}
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/***********************************************************************
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*
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* xf86JoystickOff --
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*
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* close the handle.
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*
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***********************************************************************
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*/
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void
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xf86JoystickOff(JoystickDevPtr joystick)
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{
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if ((joystick->fd >= 0)) {
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close(joystick->fd);
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joystick->fd = -1;
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}
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}
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/***********************************************************************
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*
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* xf86ReadJoystickData --
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*
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* Reads data from fd and stores it in the JoystickDevRec struct
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* return 1 if success, 0 otherwise
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*
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***********************************************************************
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*/
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int
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xf86ReadJoystickData(JoystickDevPtr joystick)
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{
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struct js_event js;
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if (xf86ReadSerial(joystick->fd, &js, sizeof(struct js_event)) != sizeof(struct js_event))
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return 0;
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switch(js.type & ~JS_EVENT_INIT) {
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case JS_EVENT_BUTTON:
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if (js.number<32)
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joystick->button[js.number].pressed=js.value;
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break;
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case JS_EVENT_AXIS:
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if (js.number<32) {
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joystick->axis[js.number].value=js.value;
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if (abs(js.value)<joystick->axis[js.number].deadzone) {
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joystick->axis[js.number].value=0;
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}
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}
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break;
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}
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return 1;
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}
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/***********************************************************************
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*
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* xf86JoystickGetState --
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*
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* return the state of buttons and the position of the joystick.
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*
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***********************************************************************
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*/
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// int
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// xf86JoystickGetState(int fd, int *x, int *y, int *buttons)
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// {
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// struct js_status js;
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// int status;
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//
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// status = read(fd, &js, JS_RETURN);
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//
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// if (status != JS_RETURN)
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// {
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// Error("Joystick read");
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// return 0;
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// }
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//
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// *x = js.x;
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// *y = js.y;
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// *buttons = js.buttons;
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//
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// return 1;
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// }
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33
src/linux_jstk.h
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33
src/linux_jstk.h
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@@ -0,0 +1,33 @@
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/*
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* Copyright 2007 by Sascha Hlusiak. <saschahlusiak@freedesktop.org>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that
|
||||
* copyright notice and this permission notice appear in supporting
|
||||
* documentation, and that the name of Sascha Hlusiak not be used in
|
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* advertising or publicity pertaining to distribution of the software without
|
||||
* specific, written prior permission. Sascha Hlusiak makes no
|
||||
* representations about the suitability of this software for any purpose. It
|
||||
* is provided "as is" without express or implied warranty.
|
||||
*
|
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* SASCHA HLUSIAK DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL SASCHA HLUSIAK BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
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* PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifndef _LINUX_JSTK_H_INCLUDED_
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#define _LINUX_JSTK_H_INCLUDED_
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#include "xf86Jstk.h"
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int xf86JoystickOn(JoystickDevPtr joystick, int init);
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void xf86JoystickOff(JoystickDevPtr joystick);
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int xf86ReadJoystickData(JoystickDevPtr joystick);
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#endif
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83
src/xf86Jstk.h
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83
src/xf86Jstk.h
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@@ -0,0 +1,83 @@
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/*
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* Copyright 2007 by Sascha Hlusiak. <saschahlusiak@freedesktop.org>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that
|
||||
* copyright notice and this permission notice appear in supporting
|
||||
* documentation, and that the name of Sascha Hlusiak not be used in
|
||||
* advertising or publicity pertaining to distribution of the software without
|
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* specific, written prior permission. Sascha Hlusiak makes no
|
||||
* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
|
||||
*
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||||
* SASCHA HLUSIAK DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL SASCHA HLUSIAK BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifndef _XF86JSTK_H_INCLUDED_
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#define _XF86JSTK_H_INCLUDED_
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#include <xf86.h>
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#define MAXBUTTONS 32
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#define MAXAXES MAXBUTTONS
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enum JOYSTICKTYPE {
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TYPE_NONE,
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TYPE_BYVALUE, /* Speed of cursor is relative to amplitude */
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TYPE_ACCELERATED, /* Speed is accelerated */
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TYPE_ABSOLUTE /* The amplitude defines the cursor position */
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};
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enum JOYSTICKMAPPING {
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MAPPING_NONE=0,
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MAPPING_X,
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MAPPING_Y,
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MAPPING_ZX,
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MAPPING_ZY,
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MAPPING_BUTTON,
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MAPPING_KEY,
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MAPPING_SPEED_MULTIPLY,
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MAPPING_DISABLE,
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MAPPING_DISABLE_MOUSE,
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MAPPING_DISABLE_KEYS
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};
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typedef struct
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{
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int fd; /* Actual file descriptor */
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OsTimerPtr timer;
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int timeout;
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char *device; /* Name of the device */
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struct AXIS
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{
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int value;
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int deadzone;
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enum JOYSTICKTYPE type;
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enum JOYSTICKMAPPING mapping;
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}axis[32]; /* Configuration per axis */
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struct BUTTON
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{
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char pressed;
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int value;
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enum JOYSTICKMAPPING mapping;
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}button[32]; /* Configuration per button */
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int axes, buttons; /* Number of axes and buttons */
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} JoystickDevRec, *JoystickDevPtr;
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#endif
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