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.h (2264B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2#ifndef __SOUND_SEQ_OSS_H
      3#define __SOUND_SEQ_OSS_H
      4
      5/*
      6 * OSS compatible sequencer driver
      7 *
      8 * Copyright (C) 1998,99 Takashi Iwai
      9 */
     10
     11#include <sound/asequencer.h>
     12#include <sound/seq_kernel.h>
     13
     14/*
     15 * argument structure for synthesizer operations
     16 */
     17struct snd_seq_oss_arg {
     18	/* given by OSS sequencer */
     19	int app_index;	/* application unique index */
     20	int file_mode;	/* file mode - see below */
     21	int seq_mode;	/* sequencer mode - see below */
     22
     23	/* following must be initialized in open callback */
     24	struct snd_seq_addr addr;	/* opened port address */
     25	void *private_data;	/* private data for lowlevel drivers */
     26
     27	/* note-on event passing mode: initially given by OSS seq,
     28	 * but configurable by drivers - see below
     29	 */
     30	int event_passing;
     31};
     32
     33
     34/*
     35 * synthesizer operation callbacks
     36 */
     37struct snd_seq_oss_callback {
     38	struct module *owner;
     39	int (*open)(struct snd_seq_oss_arg *p, void *closure);
     40	int (*close)(struct snd_seq_oss_arg *p);
     41	int (*ioctl)(struct snd_seq_oss_arg *p, unsigned int cmd, unsigned long arg);
     42	int (*load_patch)(struct snd_seq_oss_arg *p, int format, const char __user *buf, int offs, int count);
     43	int (*reset)(struct snd_seq_oss_arg *p);
     44	int (*raw_event)(struct snd_seq_oss_arg *p, unsigned char *data);
     45};
     46
     47/* flag: file_mode */
     48#define SNDRV_SEQ_OSS_FILE_ACMODE		3
     49#define SNDRV_SEQ_OSS_FILE_READ		1
     50#define SNDRV_SEQ_OSS_FILE_WRITE		2
     51#define SNDRV_SEQ_OSS_FILE_NONBLOCK	4
     52
     53/* flag: seq_mode */
     54#define SNDRV_SEQ_OSS_MODE_SYNTH		0
     55#define SNDRV_SEQ_OSS_MODE_MUSIC		1
     56
     57/* flag: event_passing */
     58#define SNDRV_SEQ_OSS_PROCESS_EVENTS	0	/* key == 255 is processed as velocity change */
     59#define SNDRV_SEQ_OSS_PASS_EVENTS		1	/* pass all events to callback */
     60#define SNDRV_SEQ_OSS_PROCESS_KEYPRESS	2	/* key >= 128 will be processed as key-pressure */
     61
     62/* default control rate: fixed */
     63#define SNDRV_SEQ_OSS_CTRLRATE		100
     64
     65/* default max queue length: configurable by module option */
     66#define SNDRV_SEQ_OSS_MAX_QLEN		1024
     67
     68
     69/*
     70 * data pointer to snd_seq_register_device
     71 */
     72struct snd_seq_oss_reg {
     73	int type;
     74	int subtype;
     75	int nvoices;
     76	struct snd_seq_oss_callback oper;
     77	void *private_data;
     78};
     79
     80/* device id */
     81#define SNDRV_SEQ_DEV_ID_OSS		"seq-oss"
     82
     83#endif /* __SOUND_SEQ_OSS_H */