mirror of
https://git.code.sf.net/p/quake/quakeforge
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103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
/*
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joy_linux.c
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Joystick driver for Linux
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Copyright (C) 2000 David Jeffery
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Copyright (C) 2000 Jeff Teunissen <deek@dusknet.dhs.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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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 <fcntl.h>
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#include <unistd.h>
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#include <linux/joystick.h>
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#include "QF/cvar.h"
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#include "QF/joystick.h"
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#include "QF/keys.h"
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#include "QF/qtypes.h"
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#include "QF/sys.h"
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// Variables and structures for this driver
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int joy_handle;
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void
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JOY_Read (void)
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{
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struct js_event event;
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if (!joy_active || !joy_enable->int_val)
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return;
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while (read (joy_handle, &event, sizeof (struct js_event)) > -1) {
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if (event.type & JS_EVENT_BUTTON) {
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if (event.number >= JOY_MAX_BUTTONS)
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continue;
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joy_buttons[event.number].current = event.value;
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if (joy_buttons[event.number].current >
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joy_buttons[event.number].old) {
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Key_Event (QFJ_BUTTON1 + event.number, 0, true);
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} else {
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if (joy_buttons[event.number].current <
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joy_buttons[event.number].old) {
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Key_Event (QFJ_BUTTON1 + event.number, 0, false);
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}
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}
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joy_buttons[event.number].old = joy_buttons[event.number].current;
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} else {
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if (event.type & JS_EVENT_AXIS) {
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if (event.number >= JOY_MAX_AXES)
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continue;
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joy_axes[event.number].current = event.value;
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}
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}
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}
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}
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int
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JOY_Open (void)
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{
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// Open joystick device
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joy_handle = open (joy_device->string, O_RDONLY | O_NONBLOCK);
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if (joy_handle < 0) {
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return -1;
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}
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return 0;
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}
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void
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JOY_Close (void)
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{
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int i;
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i = close (joy_handle);
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if (i) {
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Sys_MaskPrintf (SYS_VID, "JOY: Failed to close joystick device!\n");
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} else {
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Sys_MaskPrintf (SYS_VID, "JOY_Shutdown\n");
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}
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}
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