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#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 */