cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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seq_oss_readq.h (1505B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * OSS compatible sequencer driver
      4 * read fifo queue
      5 *
      6 * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
      7 */
      8
      9#ifndef __SEQ_OSS_READQ_H
     10#define __SEQ_OSS_READQ_H
     11
     12#include "seq_oss_device.h"
     13
     14
     15/*
     16 * definition of read queue
     17 */
     18struct seq_oss_readq {
     19	union evrec *q;
     20	int qlen;
     21	int maxlen;
     22	int head, tail;
     23	unsigned long pre_event_timeout;
     24	unsigned long input_time;
     25	wait_queue_head_t midi_sleep;
     26	spinlock_t lock;
     27};
     28
     29struct seq_oss_readq *snd_seq_oss_readq_new(struct seq_oss_devinfo *dp, int maxlen);
     30void snd_seq_oss_readq_delete(struct seq_oss_readq *q);
     31void snd_seq_oss_readq_clear(struct seq_oss_readq *readq);
     32unsigned int snd_seq_oss_readq_poll(struct seq_oss_readq *readq, struct file *file, poll_table *wait);
     33int snd_seq_oss_readq_puts(struct seq_oss_readq *readq, int dev, unsigned char *data, int len);
     34int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev,
     35			    struct snd_seq_event *ev);
     36int snd_seq_oss_readq_put_event(struct seq_oss_readq *readq, union evrec *ev);
     37int snd_seq_oss_readq_put_timestamp(struct seq_oss_readq *readq, unsigned long curt, int seq_mode);
     38int snd_seq_oss_readq_pick(struct seq_oss_readq *q, union evrec *rec);
     39void snd_seq_oss_readq_wait(struct seq_oss_readq *q);
     40void snd_seq_oss_readq_free(struct seq_oss_readq *q);
     41
     42#define snd_seq_oss_readq_lock(q, flags) spin_lock_irqsave(&(q)->lock, flags)
     43#define snd_seq_oss_readq_unlock(q, flags) spin_unlock_irqrestore(&(q)->lock, flags)
     44
     45#endif