Edit File: seq_oss.h
#ifndef __SOUND_SEQ_OSS_H #define __SOUND_SEQ_OSS_H /* * OSS compatible sequencer driver * * Copyright (C) 1998,99 Takashi Iwai * * 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 */ #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 */