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#ifndef __SOUND_SEQ_INSTR_H

#define __SOUND_SEQ_INSTR_H

/*

 *  Main kernel header file for the ALSA sequencer

 *  Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>

 *

 *

 *   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 "seq_kernel.h"

/* Instrument cluster */

struct snd_seq_kcluster {

        snd_seq_instr_cluster_t cluster;

        char name[32];

        int priority;

        struct snd_seq_kcluster *next;

};

/* return pointer to private data */

#define KINSTR_DATA(kinstr)     (void *)(((char *)kinstr) + sizeof(struct snd_seq_kinstr))

/* Instrument structure */

struct snd_seq_kinstr {

        struct snd_seq_instr instr;

        char name[32];

        int type;                       /* instrument type */

        int use;                        /* use count */

        int busy;                       /* not useable */

        int add_len;                    /* additional length */

        struct snd_seq_kinstr_ops *ops; /* operations */

        struct snd_seq_kinstr *next;

};

#define SNDRV_SEQ_INSTR_HASH_SIZE               32

/* Instrument flags */

#define SNDRV_SEQ_INSTR_FLG_DIRECT      (1<<0)  /* accept only direct events */

/* List of all instruments */

struct snd_seq_kinstr_list {

        struct snd_seq_kinstr *hash[SNDRV_SEQ_INSTR_HASH_SIZE];

        int count;                      /* count of all instruments */

        struct snd_seq_kcluster *chash[SNDRV_SEQ_INSTR_HASH_SIZE];

        int ccount;                     /* count of all clusters */

        int owner;                      /* current owner of the instrument list */

        unsigned int flags;

        spinlock_t lock;

        spinlock_t ops_lock;

        struct mutex ops_mutex;

        unsigned long ops_flags;

};

#define SNDRV_SEQ_INSTR_NOTIFY_REMOVE   0

#define SNDRV_SEQ_INSTR_NOTIFY_CHANGE   1

struct snd_seq_kinstr_ops {

        void *private_data;

        long add_len;                   /* additional length */

        char *instr_type;

        int (*info)(void *private_data, char *info_data, long len);

        int (*put)(void *private_data, struct snd_seq_kinstr *kinstr,

                   char __user *instr_data, long len, int atomic, int cmd);

        int (*get)(void *private_data, struct snd_seq_kinstr *kinstr,

                   char __user *instr_data, long len, int atomic, int cmd);

        int (*get_size)(void *private_data, struct snd_seq_kinstr *kinstr, long *size);

        int (*remove)(void *private_data, struct snd_seq_kinstr *kinstr, int atomic);

        void (*notify)(void *private_data, struct snd_seq_kinstr *kinstr, int what);

        struct snd_seq_kinstr_ops *next;

};

/* instrument operations */

struct snd_seq_kinstr_list *snd_seq_instr_list_new(void);

void snd_seq_instr_list_free(struct snd_seq_kinstr_list **list);

int snd_seq_instr_list_free_cond(struct snd_seq_kinstr_list *list,

                                 struct snd_seq_instr_header *ifree,

                                 int client,

                                 int atomic);

struct snd_seq_kinstr *snd_seq_instr_find(struct snd_seq_kinstr_list *list,

                                          struct snd_seq_instr *instr,

                                          int exact,

                                          int follow_alias);

void snd_seq_instr_free_use(struct snd_seq_kinstr_list *list,

                            struct snd_seq_kinstr *instr);

int snd_seq_instr_event(struct snd_seq_kinstr_ops *ops,

                        struct snd_seq_kinstr_list *list,

                        struct snd_seq_event *ev,

                        int client,

                        int atomic,

                        int hop);

#endif /* __SOUND_SEQ_INSTR_H */