55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
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/*
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**********************************************************************
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* timer.h
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* Copyright (C) 1999, 2000 Creative Labs, Inc.
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*
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**********************************************************************
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*
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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 as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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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. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
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* USA.
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*
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**********************************************************************
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*/
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#ifndef _TIMER_H
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#define _TIMER_H
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#include <linux/sched.h>
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#include <linux/interrupt.h>
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#include "hwaccess.h"
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struct emu_timer
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{
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struct list_head list;
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struct tasklet_struct tasklet;
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u8 state;
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u16 count; /* current number of interrupts */
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u16 count_max; /* number of interrupts needed to schedule the bh */
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u16 delay; /* timer delay */
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};
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void emu10k1_timer_install(struct emu10k1_card *, struct emu_timer *, u16);
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void emu10k1_timer_uninstall(struct emu10k1_card *, struct emu_timer *);
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void emu10k1_timer_enable(struct emu10k1_card *, struct emu_timer *);
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void emu10k1_timer_disable(struct emu10k1_card *, struct emu_timer *);
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#define TIMER_STOPPED 0xffff
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#define TIMER_STATE_INSTALLED 0x01
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#define TIMER_STATE_ACTIVE 0x02
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#define TIMER_STATE_UNINSTALLED 0x04
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#endif /* _TIMER_H */
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