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-rw-r--r--sound/oss/emu10k1/timer.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/sound/oss/emu10k1/timer.h b/sound/oss/emu10k1/timer.h
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+++ b/sound/oss/emu10k1/timer.h
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+/*
+ **********************************************************************
+ * 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 */