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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * OSS compatible sequencer driver4 * write priority queue5 *6 * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>7 */8 9#ifndef __SEQ_OSS_WRITEQ_H10#define __SEQ_OSS_WRITEQ_H11 12#include "seq_oss_device.h"13 14 15struct seq_oss_writeq {16 struct seq_oss_devinfo *dp;17 int maxlen;18 abstime_t sync_time;19 int sync_event_put;20 wait_queue_head_t sync_sleep;21 spinlock_t sync_lock;22};23 24 25/*26 * seq_oss_writeq.c27 */28struct seq_oss_writeq *snd_seq_oss_writeq_new(struct seq_oss_devinfo *dp, int maxlen);29void snd_seq_oss_writeq_delete(struct seq_oss_writeq *q);30void snd_seq_oss_writeq_clear(struct seq_oss_writeq *q);31int snd_seq_oss_writeq_sync(struct seq_oss_writeq *q);32void snd_seq_oss_writeq_wakeup(struct seq_oss_writeq *q, abstime_t time);33int snd_seq_oss_writeq_get_free_size(struct seq_oss_writeq *q);34void snd_seq_oss_writeq_set_output(struct seq_oss_writeq *q, int size);35 36 37#endif38