1/*
2 **********************************************************************
3 *     timer.h
4 *     Copyright (C) 1999, 2000 Creative Labs, Inc.
5 *
6 **********************************************************************
7 *
8 *     This program is free software; you can redistribute it and/or
9 *     modify it under the terms of the GNU General Public License as
10 *     published by the Free Software Foundation; either version 2 of
11 *     the License, or (at your option) any later version.
12 *
13 *     This program is distributed in the hope that it will be useful,
14 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *     GNU General Public License for more details.
17 *
18 *     You should have received a copy of the GNU General Public
19 *     License along with this program; if not, write to the Free
20 *     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
21 *     USA.
22 *
23 **********************************************************************
24 */
25
26
27#ifndef _TIMER_H
28#define _TIMER_H
29
30#include <linux/sched.h>
31#include <linux/interrupt.h>
32#include "hwaccess.h"
33
34struct emu_timer
35{
36	struct list_head list;
37	struct tasklet_struct tasklet;
38	u8 state;
39	u16 count;				/* current number of interrupts */
40	u16 count_max;				/* number of interrupts needed to schedule the bh */
41	u16 delay;                              /* timer delay */
42};
43
44void emu10k1_timer_install(struct emu10k1_card *, struct emu_timer *, u16);
45void emu10k1_timer_uninstall(struct emu10k1_card *, struct emu_timer *);
46void emu10k1_timer_enable(struct emu10k1_card *, struct emu_timer *);
47void emu10k1_timer_disable(struct emu10k1_card *, struct emu_timer *);
48
49#define TIMER_STOPPED 			0xffff
50#define TIMER_STATE_INSTALLED 		0x01
51#define TIMER_STATE_ACTIVE		0x02
52#define TIMER_STATE_UNINSTALLED 	0x04
53
54#endif /* _TIMER_H */
55