diff options
Diffstat (limited to 'sound/oss/emu10k1/timer.h')
-rw-r--r-- | sound/oss/emu10k1/timer.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/sound/oss/emu10k1/timer.h b/sound/oss/emu10k1/timer.h new file mode 100644 index 000000000000..b2543b4d53a8 --- /dev/null +++ b/sound/oss/emu10k1/timer.h @@ -0,0 +1,54 @@ +/* + ********************************************************************** + * timer.h + * Copyright (C) 1999, 2000 Creative Labs, Inc. + * + ********************************************************************** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, + * USA. + * + ********************************************************************** + */ + + +#ifndef _TIMER_H +#define _TIMER_H + +#include <linux/sched.h> +#include <linux/interrupt.h> +#include "hwaccess.h" + +struct emu_timer +{ + struct list_head list; + struct tasklet_struct tasklet; + u8 state; + u16 count; /* current number of interrupts */ + u16 count_max; /* number of interrupts needed to schedule the bh */ + u16 delay; /* timer delay */ +}; + +void emu10k1_timer_install(struct emu10k1_card *, struct emu_timer *, u16); +void emu10k1_timer_uninstall(struct emu10k1_card *, struct emu_timer *); +void emu10k1_timer_enable(struct emu10k1_card *, struct emu_timer *); +void emu10k1_timer_disable(struct emu10k1_card *, struct emu_timer *); + +#define TIMER_STOPPED 0xffff +#define TIMER_STATE_INSTALLED 0x01 +#define TIMER_STATE_ACTIVE 0x02 +#define TIMER_STATE_UNINSTALLED 0x04 + +#endif /* _TIMER_H */ |