189 lines
4.8 KiB
C
189 lines
4.8 KiB
C
/* $XConsortium: lnx_jstk.c /main/7 1996/02/21 17:51:36 kaleb $ */
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/* Id: lnx_jstk.c,v 1.1 1995/12/20 14:06:09 lepied Exp */
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/*
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* Copyright 1995 by Frederic Lepied, France. <fred@sugix.frmug.fr.net>
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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 Frederic Lepied 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. Frederic Lepied 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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* FREDERIC LEPIED 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 FREDERIC LEPIED 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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/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/lnx_jstk.c,v 3.8.2.1 1998/06/05 16:23:12 dawes Exp $ */
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static const char rcs_id[] = "Id: lnx_jstk.c,v 1.1 1995/12/20 14:06:09 lepied Exp";
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <sys/types.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#define inline __inline__
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#include <linux/joystick.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#ifdef XFree86LOADER
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#include "xf86.h"
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#include "xf86_ansic.h"
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#endif
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#if !defined(JSIOCGTIMELIMIT)
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/* make 2.1.x joystick.h backward compatable */
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#define JSIOCGTIMELIMIT JS_GET_TIMELIMIT
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#define JSIOCSTIMELIMIT JS_SET_TIMELIMIT
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#define js_status JS_DATA_TYPE
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#endif
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/***********************************************************************
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*
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* xf86JoystickOn --
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*
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* open the device and init timeout according to the device value.
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*
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***********************************************************************
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*/
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int
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xf86JoystickOn(char *name, int *timeout, int *centerX, int *centerY)
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{
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int fd;
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struct js_status js;
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#ifdef DEBUG
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ErrorF("xf86JoystickOn %s\n", name);
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#endif
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if ((fd = open(name, O_RDWR | O_NDELAY, 0)) < 0)
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{
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xf86Msg(X_WARNING, "Cannot open joystick '%s' (%s)\n", name,
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strerror(errno));
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return -1;
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}
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if (*timeout == 0) {
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if (ioctl (fd, JSIOCGTIMELIMIT, timeout) == -1) {
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Error("joystick JSIOCGTIMELIMIT ioctl");
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}
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else {
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xf86Msg(X_CONFIG, "Joystick: timeout value = %d\n", *timeout);
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}
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}
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else {
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if (ioctl(fd, JSIOCSTIMELIMIT, timeout) == -1) {
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Error("joystick JSIOCSTIMELIMIT ioctl");
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}
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}
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/* Assume the joystick is centred when this is called */
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read(fd, &js, JS_RETURN);
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if (*centerX < 0) {
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*centerX = js.x;
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xf86Msg(X_CONFIG, "Joystick: CenterX set to %d\n", *centerX);
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}
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if (*centerY < 0) {
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*centerY = js.y;
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xf86Msg(X_CONFIG, "Joystick: CenterY set to %d\n", *centerY);
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}
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return fd;
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}
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/***********************************************************************
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*
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* xf86JoystickInit --
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*
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* called when X device is initialized.
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*
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***********************************************************************
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*/
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void
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xf86JoystickInit()
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{
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return;
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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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int
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xf86JoystickOff(int *fd, int doclose)
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{
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int oldfd;
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if (((oldfd = *fd) >= 0) && doclose) {
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close(*fd);
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*fd = -1;
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}
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return oldfd;
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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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status = read(fd, &js, JS_RETURN);
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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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*x = js.x;
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*y = js.y;
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*buttons = js.buttons;
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return 1;
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}
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#ifdef XFree86LOADER
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/*
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* Entry point for XFree86 Loader
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*/
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void
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linux_jstkModuleInit(pointer *data, INT32 *magic)
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{
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*magic = MAGIC_DONE;
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*data = NULL;
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}
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#endif
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/* end of lnx_jstk.c */
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