Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384/* SPDX-License-Identifier: GPL-2.0-or-later */#ifndef __SOUND_SEQ_OSS_H#define __SOUND_SEQ_OSS_H
/* * OSS compatible sequencer driver * * Copyright (C) 1998,99 Takashi Iwai */
#include <sound/asequencer.h>#include <sound/seq_kernel.h>
/* * argument structure for synthesizer operations */struct snd_seq_oss_arg { /* given by OSS sequencer */ int app_index; /* application unique index */ int file_mode; /* file mode - see below */ int seq_mode; /* sequencer mode - see below */
/* following must be initialized in open callback */ struct snd_seq_addr addr; /* opened port address */ void *private_data; /* private data for lowlevel drivers */
/* note-on event passing mode: initially given by OSS seq, * but configurable by drivers - see below */ int event_passing;};
/* * synthesizer operation callbacks */struct snd_seq_oss_callback { struct module *owner; int (*open)(struct snd_seq_oss_arg *p, void *closure); int (*close)(struct snd_seq_oss_arg *p); int (*ioctl)(struct snd_seq_oss_arg *p, unsigned int cmd, unsigned long arg); int (*load_patch)(struct snd_seq_oss_arg *p, int format, const char __user *buf, int offs, int count); int (*reset)(struct snd_seq_oss_arg *p); int (*raw_event)(struct snd_seq_oss_arg *p, unsigned char *data);};
/* flag: file_mode */#define SNDRV_SEQ_OSS_FILE_ACMODE 3#define SNDRV_SEQ_OSS_FILE_READ 1#define SNDRV_SEQ_OSS_FILE_WRITE 2#define SNDRV_SEQ_OSS_FILE_NONBLOCK 4
/* flag: seq_mode */#define SNDRV_SEQ_OSS_MODE_SYNTH 0#define SNDRV_SEQ_OSS_MODE_MUSIC 1
/* flag: event_passing */#define SNDRV_SEQ_OSS_PROCESS_EVENTS 0 /* key == 255 is processed as velocity change */#define SNDRV_SEQ_OSS_PASS_EVENTS 1 /* pass all events to callback */#define SNDRV_SEQ_OSS_PROCESS_KEYPRESS 2 /* key >= 128 will be processed as key-pressure */
/* default control rate: fixed */#define SNDRV_SEQ_OSS_CTRLRATE 100
/* default max queue length: configurable by module option */#define SNDRV_SEQ_OSS_MAX_QLEN 1024
/* * data pointer to snd_seq_register_device */struct snd_seq_oss_reg { int type; int subtype; int nvoices; struct snd_seq_oss_callback oper; void *private_data;};
/* device id */#define SNDRV_SEQ_DEV_ID_OSS "seq-oss"
#endif /* __SOUND_SEQ_OSS_H */