#ifndef __SOUND_SEQ_KERNEL_H#define __SOUND_SEQ_KERNEL_H /* *  Main kernel header file for the ALSA sequencer *  Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl> * * *   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 <linux/time.h>#include <sound/asequencer.h> typedef struct snd_seq_real_time snd_seq_real_time_t;typedef union snd_seq_timestamp snd_seq_timestamp_t; /* maximum number of queues */#define SNDRV_SEQ_MAX_QUEUES		32 /* max number of concurrent clients */#define SNDRV_SEQ_MAX_CLIENTS 		192 /* max number of concurrent ports */#define SNDRV_SEQ_MAX_PORTS 		254 /* max number of events in memory pool */#define SNDRV_SEQ_MAX_EVENTS		2000 /* default number of events in memory pool */#define SNDRV_SEQ_DEFAULT_EVENTS	500 /* max number of events in memory pool for one client (outqueue) */#define SNDRV_SEQ_MAX_CLIENT_EVENTS	2000 /* default number of events in memory pool for one client (outqueue) */#define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS	200 /* max delivery path length */#define SNDRV_SEQ_MAX_HOPS		10 /* max size of event size */#define SNDRV_SEQ_MAX_EVENT_LEN		0x3fffffff /* call-backs for kernel port */struct snd_seq_port_callback {	struct module *owner;	void *private_data;	int (*subscribe)(void *private_data, struct snd_seq_port_subscribe *info);	int (*unsubscribe)(void *private_data, struct snd_seq_port_subscribe *info);	int (*use)(void *private_data, struct snd_seq_port_subscribe *info);	int (*unuse)(void *private_data, struct snd_seq_port_subscribe *info);	int (*event_input)(struct snd_seq_event *ev, int direct, void *private_data, int atomic, int hop);	void (*private_free)(void *private_data);	/*...*/}; /* interface for kernel client */__printf(3, 4)int snd_seq_create_kernel_client(struct snd_card *card, int client_index,				 const char *name_fmt, ...);int snd_seq_delete_kernel_client(int client);int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, int atomic, int hop);int snd_seq_kernel_client_dispatch(int client, struct snd_seq_event *ev, int atomic, int hop);int snd_seq_kernel_client_ctl(int client, unsigned int cmd, void *arg); #define SNDRV_SEQ_EXT_MASK	0xc0000000#define SNDRV_SEQ_EXT_USRPTR	0x80000000#define SNDRV_SEQ_EXT_CHAINED	0x40000000 typedef int (*snd_seq_dump_func_t)(void *ptr, void *buf, int count);int snd_seq_expand_var_event(const struct snd_seq_event *event, int count, char *buf,			     int in_kernel, int size_aligned);int snd_seq_dump_var_event(const struct snd_seq_event *event,			   snd_seq_dump_func_t func, void *private_data); /* interface for OSS emulation */int snd_seq_set_queue_tempo(int client, struct snd_seq_queue_tempo *tempo); /* port callback routines */void snd_port_init_callback(struct snd_seq_port_callback *p);struct snd_seq_port_callback *snd_port_alloc_callback(void); /* port attach/detach */int snd_seq_event_port_attach(int client, struct snd_seq_port_callback *pcbp,			      int cap, int type, int midi_channels, int midi_voices, char *portname);int snd_seq_event_port_detach(int client, int port); #ifdef CONFIG_MODULESvoid snd_seq_autoload_init(void);void snd_seq_autoload_exit(void);#else#define snd_seq_autoload_init()#define snd_seq_autoload_exit()#endif #endif /* __SOUND_SEQ_KERNEL_H */