summaryrefslogtreecommitdiff
path: root/sound/core/seq/oss/seq_oss_readq.h
diff options
context:
space:
mode:
Diffstat (limited to 'sound/core/seq/oss/seq_oss_readq.h')
-rw-r--r--sound/core/seq/oss/seq_oss_readq.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/sound/core/seq/oss/seq_oss_readq.h b/sound/core/seq/oss/seq_oss_readq.h
new file mode 100644
index 000000000000..303b9298f206
--- /dev/null
+++ b/sound/core/seq/oss/seq_oss_readq.h
@@ -0,0 +1,56 @@
+/*
+ * OSS compatible sequencer driver
+ * read fifo queue
+ *
+ * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __SEQ_OSS_READQ_H
+#define __SEQ_OSS_READQ_H
+
+#include "seq_oss_device.h"
+
+
+/*
+ * definition of read queue
+ */
+struct seq_oss_readq_t {
+ evrec_t *q;
+ int qlen;
+ int maxlen;
+ int head, tail;
+ unsigned long pre_event_timeout;
+ unsigned long input_time;
+ wait_queue_head_t midi_sleep;
+ spinlock_t lock;
+};
+
+seq_oss_readq_t *snd_seq_oss_readq_new(seq_oss_devinfo_t *dp, int maxlen);
+void snd_seq_oss_readq_delete(seq_oss_readq_t *q);
+void snd_seq_oss_readq_clear(seq_oss_readq_t *readq);
+unsigned int snd_seq_oss_readq_poll(seq_oss_readq_t *readq, struct file *file, poll_table *wait);
+int snd_seq_oss_readq_puts(seq_oss_readq_t *readq, int dev, unsigned char *data, int len);
+int snd_seq_oss_readq_put_event(seq_oss_readq_t *readq, evrec_t *ev);
+int snd_seq_oss_readq_put_timestamp(seq_oss_readq_t *readq, unsigned long curt, int seq_mode);
+int snd_seq_oss_readq_pick(seq_oss_readq_t *q, evrec_t *rec);
+void snd_seq_oss_readq_wait(seq_oss_readq_t *q);
+void snd_seq_oss_readq_free(seq_oss_readq_t *q);
+
+#define snd_seq_oss_readq_lock(q, flags) spin_lock_irqsave(&(q)->lock, flags)
+#define snd_seq_oss_readq_unlock(q, flags) spin_unlock_irqrestore(&(q)->lock, flags)
+
+#endif