75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/* $NetBSD: joy_timer.c,v 1.2 2002/09/06 13:18:43 gehenna Exp $ */
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/*
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* XXX This _really_ should be rewritten such that it doesn't
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* XXX rely in the i386 timer!
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*/
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/*-
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* Copyright (c) 1995 Jean-Marc Zucconi
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* All rights reserved.
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*
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* Ported to NetBSD by Matthieu Herrb <matthieu@laas.fr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <machine/bus.h>
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#include <machine/cpu.h>
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#include <machine/pio.h>
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#include <machine/joystick.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isareg.h>
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#include <dev/ic/i8253reg.h>
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#include <dev/ic/joyvar.h>
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int
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joy_get_tick()
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{
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int low, high;
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outb(IO_TIMER1 + TIMER_MODE, TIMER_SEL0);
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low = inb(IO_TIMER1 + TIMER_CNTR0);
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high = inb(IO_TIMER1 + TIMER_CNTR0);
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return (high << 8) | low;
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}
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int
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joy_timer_freq()
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{
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return (TIMER_FREQ);
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}
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